I have had an amazing experience with the trainers. They are hands on and take the time to teach…read moreyou the basics.

The staff at Synergy are fantastic. I am a repeat customer for a few reasons. Mainly I love small…read moregroup workouts and the community that it builds. The gym is great but I just struggled figuring out what I needed to do. Synergy eliminates the guess work. Age is no matter, physical limitations also no matter. The staff will help with alternative exercises and work with any limitations. They make the workouts challenging but fun. They also offer virtual if physically going in is a challenge. Don't want a group workout, they got that covered too. One on one personal training is always and option. I just love this place and the staff!

The original branch that I signed up with because they offered a free day to the businesses in the…read morebuilding where I work. After a few classes, I found their HIIT/Cardio intense (at least for me) programs very helpful for my races that require more than just running. At OTF, there's treadmills, rowers and the weight floor. You can choose where you want to start, or let the front desk pick for you. The space is a little smaller than Chelmsford, but it's convenient because I can jump into class right after work. Also, most days run classes until 6:30 unlike the other branch I go to. After attending a month's worth of classes, I can definitely say that their theory works (stay in orange/red zone long enough and you'll continue burning after class). Almost forgot, if you sign up for a class and miss it, there's a $15 fee! That's one way to stay accountable!

Love it here! The coaches and front desk staff are all awesome! This is the third OTF studio I've…read morebeen part of and is by far my favorite one.

I tried Btone legs and chest Toned class with Maria and I am now looking at the schedule to book…read morefor now. I really enjoyed the pace of the class and the direct and clear cues. Excited to try other days targeting different muscle groups. The studio is very well lit and has this homey welcoming atmosphere. There is a parking lot and lots of street parking as well. It is also a very nice getaway from the heat.

I went to my first class this morning with Brittany and she was great! Brittany's instruction made…read moreit easier for me to follow along as a beginner with only a little familiarity with the class and the poses. If you're coming for the first time you'll need to have some grip socks, I was able to borrow a pair from a friend but they also sell them there. I loved the equipment and the movements that we did had me exercising muscles that I never do when I go to the gym on my own. I left the class feeling very accomplished and toned! Everyone there was super friendly and welcoming to a new comer. If you're a little hesitant about doing this for the first time on Saturdays they have a beginner class where they go through the motions very slowly. Check out their special for new comers, get your grip socks and go get toned!!

I started my journey with Slava and Anna 2 months ago. I had a goal to get a 6 pack. Slava did an…read moreassessment with me and set up a personal work out plan according to my goals and my physical strength. Anna helped me with my diet which actually wasn't like change of all my habits. She basically taught me how to use portion control and eat what I want. Within 30 days I was able to loose from 115 lbs to 107 lbs. I lost almost 2 inches in my belly (that was a big win win) Finally, I'm not only lost the weight in my most concerned areas but as a bonus got so much stronger in shoulder and chest areas. I absolutely will continue to work out with Slava and Anna constantly. They are amazing people who care about your goals and check on you all the time! Below are my images (3 weeks apart)

SLAVA IS BY FAR THE BEST PERSONAL TRAINER IN THE NEWTON AREA. I am unable to get myself to…read moreexercise without someone there to encourage me, and even when I plan to go to a gym, I don't. I need a personal trainer who will come to me. I have had personal trainers before, but working out with them was sufficiently unmoving or unpleasant that I stopped. Then I was incredibly lucky and I found Slava. Even though I dislike doing exercise, because of Slava's engagement, dedication, and terrific and supportive personality working out with him has been not just bearable, but fun! We've worked together for over a year, and he now comes to my house 3-4 times a week. I'm in better shape than I have ever been. If you need a personal trainer, you will not find anyone better!

They brought in technicians since my last review to perform maintenance on the machines, I…read morewitnessed this with my own eyes. However, the drinking fountain upstairs has been out of order for months without any end in sight and now the downstairs fountain is out of order, with little chance that will be repaired sooner. No functional drinking fountain is unforgivable. This is a high traffic gym between Waltham and Cambridge with lots of people stopping off before work and we need water. Photos attached.

Once or twice a week, I have to come to this location because it's less than five minutes from my…read morehouse and I have to take care and be close to my home because my mother and this is how the bathroom always looks. It's disgusting. It's never cleaned anymore. the showers are the same way there's trash there's mold growing. It smells awful. I would tell anyone if they can avoid it. Please do not come here. Please do not sign up. This place is just getting worse and worse and worse

Tried calling them a few times. But every time I spoke to someone they said I would get a call back…read morefrom Angel who is the owner. It's been over 2 month and I haven't heard from anyone. So much for their stellar five-star reviews. Psh! Update: The fact that the owner was so quick to call my review 'petty' when he didn't return my calls for months goes to show the line he's ready to walk just for the sake of maintaining a false reputation on yelp. It also speaks volumes of how mindful he is of other's time. We all come from a different place in our respective lives Mr Owner and all I expected was an acknowledgement. P.S: Don't assume people are stupid enough to tell the different between a genuine apology and a snarky comment. I hope have a fabulous day!

Boston Underground Strength Training is a godsend in the sports fitness community. I spoke with…read moreAngel on the phone to discuss my goals, recovering from a multi-year shoulder injury and getting back onto the path to powerlifting, and we set up an in-person consultation. The consultation was quick and thorough and we set up a plan of action to get me back in shape to lift heavy again. It took a while but trusting Angel and the other trainers here was the best thing I have ever done. I want to say it took about 8 months of recovery based training with the semi-private training group but I no longer have the chronic shoulder pain that I first walked in with. Since coming to Boston Underground Strength Training and going through the recovery training I have competed in three powerlifting meets and have been performing better than I could ever imagined thanks to the excellent programming and coaching provided here. Without Boston Underground I would never have been able to recover from my shoulder injury and probably would have had to give up on my favorite hobby. I wish I could rate this higher than 5/5. -Kyle Campofiore

If you're a busy dad of three like me, you know the fitness struggle is real. It's been a loooong…read moretime since my high school Track days, and trying to maintain a workout routine between kids and work was just not going to happen. I've lost track of the number of times I've said, "this is the time I'm going to stick with working out." I started going to Fitness Together last year and it's been exactly what I needed. No crowded gyms or waiting for machines. Expert trainers who handle all the thinking (and racking weights!) for me. Sessions on my calendar that keep me accountable. The trainers plan the workouts, track my progress, and actually make sure my form isn't awful. It's amazing how much easier it is to stick to a workout routine when all you have to do is show up and focus on picking heavy things up and putting them down. It's been the only way I've actually stayed consistent. If you've got fitness goals but zero time to waste, definitely check them out. Super glad I found this place.

Brian was a great trainer. He truly customized my workouts to fit my needs. He listed and heard me…read morewhenever I asked for a modification, be it because of an injury or because I wanted to have a lot of variation. And Brian could come up on a spot with so many options and changes. He is humble, but a real professional.

I heard about Chained Evolution while I was a member of OTF Waltham. I finally checked out the…read moreplace when I signed up myself, my wife (fiancée at the time), her sister and the sisters boyfriend to a challenge. The place is a great small local business. The owners, Mike and Audrey are very knowledgeable and they provide great recommendations. They offer InBody scans and even have a Fit 3d scanner. Highly recommend this place for your nutrition/supplemental needs.

I started my baby weight loss journey at Chained Evolution in September of 2018. This was the…read moreperfect weight loss program for me, I have never been so motivated in my life. I just gave birth to my first baby boy October of 2017 and Chained Evolution made it possible for me to lose 40 pounds in less than a year! This made me feel stronger, more confident and energetic enough to do the things I've always wanted to do, like running a marathon or even wearing a bathing suit in public. Chained Evolution has everything that I was looking for food/nutrition, exercise classes, and 1 on 1 training sessions that fit my schedule, an all in one stop shop providing access to all the things that I needed to reach my goals, which made my journey process very convenient. They gave meme the tools for success. Just recently I finished a 5 mile run this year and finally have the confident to wear a bathing suit for the first time in my life! Going to Chained Evolution helps me to enjoy my life more and continue my healthy habits. I am constantly achieving things I never thought possible and I owe it to the Chained Evolution Family! I would recommend this place to everyone I know.