Every time I visited here, Deion always makes everyone feel welcomed! He greets members and…read morevisitors with smiles! You can tell Deion is passionate with fitness and he is a great coach. He pays attention to everyone in the classroom. He always spotted something happened on me and came to offer helps and modification. Through out the workout, he also gives form corrections to others! I really appreciate his knowledge and profession!

I believe this F45 Irvine location was recently renovated earlier this year, and it definitely…read moreshows. The space feels clean, refreshed, and really nice to work out in. I love that they offer plenty of class times throughout the day. The trainers here are awesome. They're always friendly, inviting, and quick to help correct your form in a supportive way. You can tell they genuinely care about helping members get better. Please keep it up! Parking is also a big plus here since it's located in Sky Park, and there are plenty of spots available right outside.

Can't believe the owners would do that to arguably their best coach. Iykyk. It was good for a few…read moreyears but I'm done w this location. Edit* automatic grounds for termination? maybe it is maybe it's not, in reality you have a choice how to respond to someone who significantly supported your business for a long time. I personally don't think she overstepped her bounds and clients may or may not migrate. Clients will make that choice for themselves with or without cutting her short. IMO it would have been a better long term business decision to let bygones be bygones. However you're free to operate how you will, and I'm free to give my opinion to others.

Such a great studio! The vibes are amazing and the workouts are always different, which keeps it…read morefun and challenging. I love that I never know exactly what to expect -- it makes showing up exciting. Coaches are motivating and the community feels super supportive. Definitely recommend!

I've been going to 3D Fitness 4-5x/week for the past three years -- including all the way through…read moremy first pregnancy -- and it's easily one of the best decisions I've made. The workouts are strong, but that's not the differentiator. The community is. You see the same people consistently, and over time it becomes a tight, supportive group. It's rare to find a gym where you actually look forward to who's going to be there, not just what's programmed. Programming is thoughtful and well-balanced -- strength + high-intensity cardio -- and it never gets stale. Chris (owner/instructor) is especially good at reading people and pushing you just past where you think your limit is. You end up doing more than you expected, regularly. There's also real connection beyond the floor. They organize occasional events -- I recently did a cooking class with ~20 women from the gym -- and it adds another layer to the experience. I've always been active, but this is the first time in 20+ years I've been this consistent. That's not accidental -- it's because of the environment. If you want a place that will push you, keep you accountable, and make you want to show up, this is it.

Love the Chippewa Falls location. It has great management and a laid back atmosphere. I highly…read morerecommend it.

Amazing workout. Fantastic gym. Excellent trainers. And a wonderful sense of community. A special…read morecall out to trainer Katie Savage. She is a true trainer and I appreciate that. Not a dancer, not a cheerleader, not a squealer, but a trainer and a motivator. Thank you,Katie!

One of the best box gyms I have been to. The workouts are challenging and efficient. The…read moreworkout is also structured in a way that it hits most muscle groups. There is a good sense of community. The instructors are great as well. They provide towels. This gym is great for weight loss but not great for bulking. It's heavy on cardio and high rep weight lifting.

Thank you Ark Fit for the sweaty workout! I was visiting Tustin for work and was looking for a gym…read morethat offered a hassle free day pass. Ark Fit is perfect. The gym is very well laid out and has all the equipment you could need. Tons of machines, a large free weight area with benches, a few heavy duty squat racks, cardio machines and a nice turf area. They also offer fitnesses classes, and apparently even have a sauna and a cold tub, but I didn't get a chance to use it. The gym is very clean, including the change rooms. The change room has a shower and lockers with built in locks. The front desk staff were super lovely. I'd recommend checking this place out as a visiter or for a regular membership!

Ark Fit has truly changed my life. As someone who has always felt insecure in gym environments and…read morestruggled with being consistent, I can say this is different. I've tried everything--from traditional gyms to ClassPass and CrossFit, until my sister introduced me to Ark Fit. The facility has all the equipment you could need, but what truly sets this place apart are the coaches + staff. They have created a warm, welcoming environment and built a supportive community. Open gym is always a vibe and kept so clean. The classes are as challenging as you want them to be, and coaches meet you where you're at. Every coach brings the same positive energy, understanding, and kindness to each class. Regardless of your fitness level, you'll never feel lost or left behind. If you're looking for a gym that combines expert coaching, an incredible community, and a truly welcoming atmosphere, Ark Fit is the place to be.

Great environment with welcoming members and a friendly, helpful staff. The facility itself is…read morehuge, with plenty of high quality equipment, so it never feels overcrowded. One of the biggest advantages for me is the flexibility. Being able to show up without needing a reservation makes it so much easier to fit workouts into a busy work schedule. Everything is also very clean and well maintained, which makes the overall experience even better.

It was my first time here and I must say Angel and Chris were super helpful. They made sure to…read morewelcome me, asked me if I had any questions, guided me and showed me the correct way to do all movements for their class. I loved that I felt they cared for me to learn on doing the right movements. I came out feeling the burn on my glutes and happy with the instructors. I will be returning

F45 workouts are the best part of my day! My usual gym is in Irvine which I LOVE! But I have been…read morewanting to try the Tustin branch out for a while now. They have many class options but they do seem to get busy because they're waitlisted on the app. I managed to passport one Saturday morning. I liked the trainers, the vibe and the music. The DJ arrived for the class after mine so I missed out on that but I still liked the music. I noticed the gym was air conditioned which was different to mine. The instructor's were great at walking around and giving you tips on your workouts. The workout was amazing as always, it's really as hard as you decide to push yourself. So you could have an easy workout by doing body weight exercises or you could lift heavy. Easy parking in the lot up front.

I started my fitness journey at F45 Tustin a little over a year ago in 2025, and I can confidently…read moresay that it has been one of the best decisions I have made. The results speak for themselves. The physical changes are noticeable, but more importantly, the consistency, energy, and overall mindset shift have been just as impactful. What truly sets this location apart is the coaching staff and the community. The coaches strike the perfect balance between motivating, encouraging, and keeping things fun (even during the toughest sets). They push you when you need it, support you when struggling, and genuinely care about your progress. Equally important is the community. What started as a group of people working out together has naturally evolved into real friendships. That kind of environment is rare and important to me. If it were not for the great people here, I would have stuck with my other Fitness membership. Speaking of which, in full transparency - I still have another fitness membership elsewhere. However, I have not touched it in months. If one is looking for a place that delivers results, keeps you engaged, and surrounds you with the right people - this F45 Tustin location is the place to be.

I got 2 gift certificates to try this place out, so I brought a friend with me. We were really…read moreexcited to try something new and possibly find a new gym that we liked. Unfortunately, she lives in Long Beach and they wouldn't honor the gift certificate unless you live within a 10 mile radius. We were given the options of buying a day pass or sign up. After a bit of bickering back and forth, we decided to leave. The 12 may be a good gym - but it def left a sour taste in our mouths. It was def a bummer that we weren't able to try them out and test the ice plunge thing. Oh well.

This Gym ain't it small not clean out of date machines Go…read moresomewhere else save your money.

I've been doing Pilates with Dondi for a few months to help with lower back pain, and I've seen…read morereal improvement. Dondi is knowledgeable, kind, and takes time to explain each movement and the muscles involved. She picked up right where my physical therapy left off, focusing on the areas my doctor recommended. The schedule is flexible, and while the cost is on the higher side, the small class size and personalized instruction make it worth it. Highly recommend for targeted support and steady progress.

I highly recommend Dondi and her studio! She offers a flexible schedule and a variety of challenges…read moreto keep workouts engaging. She always ensures we have the right form. The studio, equipment, and mats are always super clean. Her instructions are clear, and she adjusts the equipment for us, making workouts smooth and effective. Dondi is super nice, funny, and knowledgeable. My body is definitely more toned, stronger, and in better shape since I started. Highly recommend Core Plus Pilates!

Becky is a fantastic instructor who is challenging but also understanding of everyone's abilities…read more She provides easy modifications and always has an even, steady pace. I never feel rushed, like I have to try to keep up. She also demonstrates all the movements so you know how to do each move. I've enjoyed her classes so far, each one has been a different, challenging workout. I'm new to Pilates so I look forward to continuing learning from Becky

I'm an avid cyclist, and I recently took up Pilates for cross training 3 months ago; I've tried at…read moreleast 10-12+ studios trying to find what will be my "home studio," and I think I found it with Neaumix. The Von Karman and Northwood locations are under the same owner, and I love that I can use my passes at either location AND book up to entire month in advance; I'd give them more stars if I could, as that's truly rare among Pilates studios with 1-2 weeks being the norm. Parking is super accessible at both, and the studio size is perfection and capped at 9. I've tried different studios that cram 15+ reformers in a room, and there is simply no way for an instructor to be diligent in checking the form of that many people at any given time. Some studios sacrifice quality for quantity - not here at Neaumix though! I appreciate the classes at both Irvine location being a tad longer at 50 minutes, instead of 45 which is common at other studios (including other locations in the franchise). 5 minutes may not seem like a lot, but you can do at least 2 additional movements in that time period to maximize your workout and target additional muscle groups. I have genuinely enjoyed class with each instructor so far. Mariana (Von Karman) and Emily (Northwood) are especially top notch for their incredible attention to form and wonderful cueing. I also enjoy the movements in their classes, as I find them more dynamic, often engaging multiple muscle groups simultaneously to get an efficient, engaging work out. I consider myself fit and in great shape, but I leave each class humbled and sweaty. Today, I had a glitch with their booking platform where it wasn't deducting my passes properly, essentially giving me extra classes. Not wanting to abuse the system and take advantage of the error, I called the owner to report it in case it was a wider issue. John was so nice and appreciated me raising it to his attention; he even gave me a complimentary pass, which was truly too kind considering that they already give each client one free class. Can't recommend Neaumix enough, especially Northwood and Von Karman.