1. Fit Fast Transformation

1. Fit Fast Transformation

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Rancho Cucamonga, CA

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Fit Fast Transformation

4.4 (28 reviews)
Closed 6:00 am - 10:00 pm
Updated 3 months ago

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Personal training

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Elizabeth D.

Dion is not only an AMAZING person he's a GREAT trainer. When I first reached out to Dion I was not only unsure but I was nervous as well. I was nervous and intimidated about going into a gym with all these fit people around afraid that they would judge me. Also due to previous experiences I was afraid of wanting to try again. On our first meeting Dion was super nice and very patient in making sure to go over all the details for me. He answered all my questions and addressed all my concerns. Now 6 months later I'm not only losing the weight( down 45 lbs), gaining muscle, and also finding a new confidence in myself that I didn't have before! The workouts outs are great and I never walk in knowing what we are doing that day. Dion is constantly pushing me to not only work harder, but also to challenge myself even when I'm unsure if I'm able to do it. I have recommended Dion to so many people and if you are looking to start your journey whatever your goals may be then Dion is definitely the person that you want in your corner with you on your journey.

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3 years ago

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Dion H.

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1 year ago

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2 years ago

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Dion H.

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3 years ago

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Dion H.

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4 years ago

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2 years ago

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3 years ago

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8 years ago

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3 years ago

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Dion H.

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6 years ago

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3 years ago

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5 years ago

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8 years ago

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8 years ago

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4 years ago

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Dion H.

Thanks for the support! Glad you enjoyed your experience with us.

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5 years ago

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Dion H.

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5 years ago

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8 years ago

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7 years ago

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7 years ago

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Dion H.

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8 years ago

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9 years ago

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Ask the Community - Fit Fast Transformation

What Covid guidelines, if any, is this gym following?

What are the prices for these challenges?

Hello Sonia, prices vary depending on your fitness level goals etc. the first step would be for us to schedule a consultation. Give me a call and we can set something up!

How can I get ahold of him? I've been trying to call at the phone number on the yelp account but so far no luck.

Hi, I’m sorry you aren’t the first person I’ve heard this from I’m not sure what the problem is. Contact me on this number at your early convince (909)638-2350

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Review Highlights - Fit Fast Transformation

I had the unbelievable fortune of working with a Dion at Fit Fast who is nothing short of a miracle worker.

Mentioned in 21 reviews

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6th Sense

6th Sense

4.2
(28 reviews)
3.7 mi

Terrible experience at this neglected gym!…read more I joined this gym on the beginning of this month (April ) and got my membership canceled by the owner 12 days later which I only used the facility 3 days to workout. I have multiple gym memberships from commercial to private gyms and this was a first. I always clean and unload the machines after each use and this day was not a different day. I was approached by the manager of the gym which is the owners brother in a disrespectful way, telling me to rerack the weights from previous machine which I clearly unload the machine, but the gym does lack on weights stations to unload to it, so I left on the side of the machine organized which he told me to put where I got them from, which was from walking around the gym grabbing from machine to machine and I told him that it doesn't make any sense when they lack on stations to drop the weights on it. Although I went back and did what he said. I pay to go there not to work there. 2 minutes later as you see the screenshot, the owner Mario texted me saying it is courtesy but them is rules which is not on the contract anyway. So they canceled my membership when I didn't even left the machines loaded or weights on the floor. Unfortunately this was a act of discrimination from the manager to me as a person as there was one other dude earlier time leaving all weights on the machines and nothing was said. I was going to cancel the membership on Friday due to this gym been neglected for long time. Machines are mostly ripped off , tapped or some broken. Machines are on top of each others or next to the walls with wires or ladders next to or impossible to load them, so many hazards. Bathrooms are dirty and trash all over the place most the time and barely anyone at the gym. Men's locker room is a mini one dirty with broken toilet and main door doesn't even fully close. What you see on IG are all filters and angles, they clearly misleading people, I joined online on their website from social media, as if I add gone see it before in person I wouldn't ever join it.

Honestly best gym I've ever been a member of, by far the best machines, you can tell the owner…read moreknows his stuff. The layout is a little weird and can feel overcrowded at times but I feel the negative comments on that are a little over blown. The music can also be too loud on some days, to the point where you can't even hear your own music with headphones on but I do appreciate the fact that customers are allowed access to the aux. Another gripe I had, which was a big one considering how much monthly you were paying was that several machines would be out of order on a consistent basis especially in the cardio department, as well as a urinal in the men's restroom. It's been a few months since the last time I was there, so I don't know if that's been resolved by now or not. Owner is a really cool guy and was very responsive to all my inquiries and messages. Main reason I'm not going here anymore is because of a one-off, petty dispute my friend had that was both initiated and escalated by a trainer working there but outside of that, it's arguably the best gym in the ie.

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6th Sense
Owner of 6th sense Mia
Owner of 6th sense Mia
6th Sense

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Kacy Performance

Kacy Performance

5.0
(86 reviews)
12.5 mi
13 years in business
Free consultations

I originally came in just wanting to fix my form and learn how to lift properly, and that's what…read moreI've been getting. Kacy is big on progression and basically operates under the assumption that you can always go up in weight, which has pushed my strength up (especially hip thrusts and RDLs). It's small group training, which keeps the energy up because everyone's working at the same time. He'll keep you accountable and make sure you finish your sets and there's a decent chance you'll leave with a random nickname you didn't ask for but it does keep things entertaining. In my first month I've already seen measurable changes in strength and body composition, so it's been interesting to see the progress show up pretty quickly. Curious to see what the next couple months look like.

My girlfriend had been working with a conditioning coach for some time but saw minimal results. We…read moredecided to shift focus and look for a strength-based training approach, which is when we found Kacy. We met with Kacy in person, where he clearly explained how his program works, reviewed pricing, and discussed the nutrition expectations that accompany the training. He was very straightforward, professional, and understanding--especially recognizing that it can be difficult to transition away from a previous coach. Training began shortly after. Sessions can be busier during certain days and times, typically running 60-90 minutes, with multiple clients training simultaneously. Despite this, you receive excellent value for the cost. The pricing includes gym access, which is a great benefit. Kacy maintains a professional environment while keeping sessions engaging, motivating, and appropriately challenging. It's important to note that this is primarily a group training format. While Kacy provides guidance and instruction, he is not overseeing every single repetition. For those who are completely new to lifting, discussing one-on-one sessions would be beneficial. Overall, we highly recommend Kacy. Thank you, Kacy, for your patience, professionalism, and continued support

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8 weeks of dieting. Loss of nearly 7% BF and 20 lbs overall. Total body recomp
8 weeks of dieting. Loss of nearly 7% BF and 20 lbs overall. Total body recomp
Down 35 lbs and up 7.5 lbs of muscle
Down 35 lbs and up 7.5 lbs of muscle
Kacy Performance

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The Camp Transformation Center - Ontario Ranch

The Camp Transformation Center - Ontario Ranch

4.7
(56 reviews)
7.8 mi

This gym is completely unrecognizable from what it used to be. What once felt like a true community…read morenow feels like a corporate rebrand that forgot the people who built it. The culture has shifted away from the diverse, welcoming vibe that reflected Ontario and into a loud, performative, hyper- bro, heavy metal/rock atmosphere. It's not technically "bro only," but if you're not part of that energy, you're effectively invisible. When new ownership came in, they fired the long-time employees who made the gym feel like home, and since then the environment has become uncomfortable and oddly transactional. The vibe now feels performative rather than genuine. The trainers are loud for the sake of being loud, hyped to an almost cracked-out level that feels disingenuous instead of motivating. The favoritism is impossible to miss. I'm here weekly, and Miguel, the owner, has never once acknowledged my existence. No hello. No nod. No eye contact. Meanwhile, he's fist-bumping the men on either side of me like it's a frat boy reunion. Every. Single. Time. As a woman, it's hard not to see the pattern. He'll happily engage with the conventionally attractive women, but if you're just a normal person trying to work out, you're ignored. If you're not ripped, or radiating alpha energy, you're background noise. It's giving used car salesman confidence with a dash of outdated male chauvinism.. A gym should empower people and make them feel welcome, not dismissed or overlooked. It's genuinely disappointing to watch a once inclusive space push away the very community that made it successful in the first place. P.s. please diversify the music again! We need some reggaton, rap, and EDM... It's missing some Ontario culture.

The 4 PM class with Autumn definitely caught my attention. I usually work out with my headphones in…read moreand tune everything else out since I'm not in the class, but I forgot my headphones this time, and her energy still came through. The workout itself looked intense and pushed the class to the edge. No one was coasting, and the pace stayed high the entire time. Autumn stayed locked in with her group, motivating and pushing them without letting the energy drop. You could see how much the class fed off her. Her motivation felt real, not forced, and it showed in the effort everyone was giving. Even just watching from the side, it was obvious her energy is unmatched. She's the kind of coach that makes people push harder and stay engaged.

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Awesome fit fam
Awesome fit fam
Me and hubby at the gym!
Me and hubby at the gym!
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PeachBody Studios

PeachBody Studios

5.0
(41 reviews)
7.6 mi

Long overdue review for Peach Body Studio! I signed up for…read moreone of their programs last year and truly enjoyed my experience. One of the things I loved most was the atmosphere--it's an all-women's studio, which made it feel comfortable, supportive, and never overcrowded or overwhelming. All of the trainers are amazing--encouraging, knowledgeable, and genuinely invested in helping you succeed. I especially appreciated how welcoming everyone was, no matter your fitness level. Unfortunately, I wasn't able to renew my membership due to what I initially thought was a minor walking injury I experienced in June. After an X-ray, my doctor said everything looked fine, so I continued working out at Peach Body with modified exercises. Toward the end of my membership, I even transitioned into personal training sessions with Cheli, which helped me tremendously. I had every intention of rejoining after my six-month membership, but I had a trip to Spain planned. When I returned, my knee still wasn't improving. I ended up seeing a new doctor and, after an MRI in January, found out I had a torn meniscus. Fast forward to February, I underwent meniscus arthroscopy surgery. I'm currently on the road to recovery (still in a full leg brace), but I'm hopeful and looking forward to rejoining Peach Body Studio in a few months once I'm fully healed. Overall, I highly recommend this studio to anyone looking for a supportive, empowering environment with fantastic trainers!

I've been going to PeachBody Studios for about a year now, and I can honestly say it's been such a…read morepositive experience for me. I actually found PeachBody after having a really bad experience at a previous gym, so I was a bit hesitant at first. But from the moment I started here, everything felt different. The environment is welcoming, supportive, and truly empowering. What I appreciate most is how comfortable I feel during my workouts. It's not intimidating, and there's a strong sense of community. The coaches are encouraging, knowledgeable, and genuinely care about our progress. They always striving to educate us--whether it's proper form, technique, or understanding how to get the best results and our diet which makes a huge difference. The workouts are effective and focused, especially for glute and full-body sculpting. I've noticed improvements in my strength and confidence, which has been really motivating. I'm really grateful I found this place. It's a space where I feel supported by others and encouraged to keep showing up for myself. Highly recommend to anyone looking for a positive, women-focused fitness community! I would like to add too HUMOR! Expect To Laugh A Lot!

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PeachBody Studios
PeachBody Studios
Even on your birthday you're celebrated with a good sweat! It truly feels like family here!

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Even on your birthday you're celebrated with a good sweat! It truly feels like family here!
Greg Cornejo

Greg Cornejo

5.0
(11 reviews)
2.1 mi

100% recommend I…read morecame to Greg as a referral from a friend who had been working with him and got great results. I wanted a female trainer but my girlfriend insisted he was great and I saw her results and decided to try him out. I have been amazed by his fitness knowledge! Any questions he answers with research and stuff he's tried and cuts through all the BS. Since I've meet him a few months ago, he's been on a cut and you can tell he knows his stuff because he gets the results he wants for himself & his clients. I request heavy on the lower body & my legs look amazing! I feel super confident wearing short skirts this summer & putting on a bikini at the beach every week due to how toned I look! He is efficient! My one-on-one sessions are one hour but I put in work! He personalizes each work out to me depending on my goals and we get to it! He makes sure each rep & set are optimal for me and we adjust throughout the session depending on what my body can do that day. Greg has taken me to failure, I've cried, I've puked and I keep coming back! He pushes me in just the right way, something I could not do on my own. My workouts with him are super fun and I always look forward to them! I have no reservations about endorsing Greg to anyone! I also would like to add I have a PCL tear and he makes sure I'm safe. I've had major improvement in my chronic pain since gaining muscle that's improved my daily life.

I have worked with Greg for only 7 months, consistently once every week, and I have seen real…read moreresults with his training. Greg is down-to-earth and a no BS trainer that pushes you to become the best version of you. His charisma comes from his outspoken attitude and experience working as a personal trainer at other gyms. I can tell that he is very smart and well-informed in the type of work that he does, and I strongly believe that will carry him far along for his own personal goals. He is also very professional and knows how to think ahead. If a gym or environment does not meet the needs of his clients, it does not meet his. This is someone that knows how to work with people and will definitely have a bright future ahead of him.

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Post- leg day
Post- leg day
One of my most consistent clients!
One of my most consistent clients!
Greg Cornejo

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Formula Fitness Personal Training

Formula Fitness Personal Training

5.0
(24 reviews)
3.7 mi

Hands down, this is honestly the best group of trainers I've ever come across! Each have the…read moreability and knowledge to help anyone that trusts them with their fitness goals. Personally, I have been blessed with being trained by Rodrigo and Jose. Both have their own workouts, different routines. Yet, they both give me the support, faith, and confidence that I lack. I cannot thank them enough for always putting me first, making sure I'm doing good, and growing not only physically but mentally as well. I am super thankful to have them as trainers, but even more thankful to be able to call them my friends. Can't wait to see what the future has in store for us in the gym! I wouldn't want to train anywhere else, and with anyone else! These guys are IT, and you should definitely trust them with your fitness goals! FOLLOW THE FORMULA

I'm going on my fifth month training with Andrew. My experience has been great. Physically I am a…read morelot stronger but mentally too. I'm learning to trust and love the process. That's invaluable to me. I have new goals and implement healthier habits in my life. I couldn't have done it without the help of Andrew! I appreciate the time he takes to explain the reasoning behind a movement, training, food or any other questions. He makes himself easily accessible. I would def recommend training with Formula Fitness if you're looking.

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Love educating others on how to properly perform exercises
Love educating others on how to properly perform exercises
6 week transformation
6 week transformation
Trainer Rodrigo chatting it up with his client in between sets

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Trainer Rodrigo chatting it up with his client in between sets

Fit Fast Transformation - healthtrainers - Updated July 2026

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