F45 is a franchised gym that offers a fast-paced fun group workout roughly alternating days…read morefocusing on upper body, cardio, lower body, and full body/abs/cardio. The workouts focus on "functional" fitness and are 45 minutes long (except for one hour-long session a week), hence the F45 name. The workout for the day is the same program whether you're exercising in Australia where the program began or here in little Rhody. (Very cool today to take a 9am session here while my daughter took the same one in LA.) Pre-registration is required as there is a limit of 28 participants in any class - at least in this club. The goal to to move fast, sweat, and develop some camaraderie with your fellow participants and partner for the day - high fives are pretty much mandated. Two staff members work at every session. They explain and QUICKLY demo each move and describe the circuit. You and your "partner" - assuming an even numbers of people in the class, you are paired with someone who moves through your circuit with you - start at an assigned station and receive direction and timing from a video screen demo'ing your move as you do it. The staff regularly visit everyone in the room giving support and encouragement and some comments to assist with your form, weight selection, and (in my case) an explanation of the occasionally confusing progression through the circuit. The sales material says the program works for all fitness levels but if you are not used to regular strength training, this probably isn't for you: it's fast and many of the exercises are complex (upper and lower body combined even on leg- or arm-only day, with cardio because of the limited rest periods so it's always a HIIT program), the weights start at 10 pounds, and many of the safety tips aren't consistently given (knees above ankles for a lunge, roll your shoulders back and don't collapse into it...), and it is WICKED FUN!!! The staff are friendly, the club is clean, the equipment is great (y-bells, Thor's hammers, multi-handled sand bags, in addition to the expected kettlebells, dumb bells,etc). Pricing is higher than a "gym," more like a Pilates or yoga studio. Again, I loved it - but this won't be the place for everyone.

The best studio ever. Love these guys they got me in my second of seven free days. You guys are…read morebomb and worth every penny. - Colter

I can't speak to what it's like to be a member here, but as an out-of-towner who needed a gym to go…read moreto for the day, I highly recommend this place. They offer day passes for $10. It's a no-frills environment - there's a TV in the cardio area but that's about it - but everything is clean and in good shape. It definitely feels like a place for people who are serious about their training, more so than your typical Globo-gym. The equipment is in good shape, and they have lifting platforms and bumper plates! I would be a member here if I lived in the area.

Excellent facility. Every kind of machine available. Some classes. Child care available at times…read more Experienced and very helpful staff!

I am a big fan of F45 in general but the Northborough location really takes it up a notch. They…read morehave clearly worked hard to cultivate an energizing environment that''s also super accommodating of all fitness levels. The coaches are all motivating, hands on, and really push you to your maximum potential. Each class is challenging but it flies by with the ever changing movements and timing. Great energy and studio

F45 is as friendly and inspiring gym community that you can find!! It's clean they have taken the…read morenecessary precautions to provide a safe environment to stay healthy during these uncertain times. If you are looking for a place to stay or get into shape and feel like you are a part of a community then F45 Northborough is the place for you!

This is actually a response to the owner, because I could not reply to the comment that you made. I…read moredo not use my real name on yelp for this specific reason. But I was a member at your gym and everything I said was true. You have two bathrooms in the right hand corner of the gym, a ring in the middle, weights to the left. I was a member there for a while and your gym is not good. So you will not find my name on your registry or whatever, but my review still stands. If you're a real boxer, this is not the gym for you.

Best gym around! The classes and trainers are awesome. It's family friendly, so I don't have to…read moreworry about the baby while working out. Everyone I have encountered in the gym is super friendly. Most important the workouts will kick your butt, but have you coming back for more. Try this place out, you won't regret it.

Great people in the classes, great ownership, genuine people, very welcoming atmosphere, classes…read moreare so easily scalable for all sorts of fitness levels.

I am visiting from my home F45 in San Diego/ La Costa and found this location not too far from…read morewhere I am staying. It is clean, consistent with the program that I have been accustomed to, fairly priced and the staff in my two sessions are friendly and solid. I really liked that they had a weekly rate versus paying some ridiculous daily fee; Smart move in their management. Well done.

just finished my first few classes at F45 South Shore, and I am already hooked! If you're looking…read morefor challenging workouts in a fun & uplifting environment, you have to come check out this studio!

F45 Training just opened up five days ago and I am so in love! Thrilled about the location. Dani…read moreand her team are amazing and the energy is fire, even at 5am! F45 is a total-body workout with a mix of cardio and strength. It is interval training so you will never get bored. There are ropes, kettle bells, box jumps, rowing, cycling, and so much more! They are currently running a promotion for $1 for one week trial and totally worth checking out. I signed up for the Founders Rate. I haven't gone to the gym in three years. The trainers will help you if you need any modifications to you workout. I look forward to the results I'll see as I continue on with these workouts.

The very best strength and conditioning gym around. Nate is FANTASTIC. He incorporates a lot of…read moredifferent exercises in his full body workouts and no two workouts are the same. His energy is top notch and he is always paying attention to his clients in class. He wants us to get better, stronger. He doesn't hesitate to fix your form or comment on how to do an exercise better/wiser/more efficiently and it's extremely helpful and beneficial. I see results with him. He really cares about his clients and he is the BEST trainer I've ever had. Go check out warrior fitness. The prices are super reasonable and you are guaranteed a killer workout.

Nate Witowski puts his heart and soul into his training model and it shows. When a piece of real…read moreestate opened up, Nate grabbed this spot and is making a wonderful fitness center. I have trained with Nate, twice. He listens to your needs and creates a program. His group circuit training classes are great.

Incredibly friendly and motivating gym. Coleen and the other trainers are so welcoming and…read moreknowledgeable, always able to suggest alternative ways to work out that fit my needs and ability. I'm not a gym person, but I've become one because of this particular F45. Highly recommend you at least try it, people!

Great team, super supportive, and extremely caring…read more Highly recommend this for anyone that is looking to either start out or just wanting to push themselves to a new level. I used to own my own gym and have always had trouble finding another gym that I enjoyed - but this spot is my new jam lol.