Loved visiting this box! The people were lots of fun, super helpful and friendly. PJ was amazing as…read morea coach and the equipment/space was among the best I've seen. Loved the beautiful trails these folks have access to. If you're lucky enough to be visiting this area, drop in. When I'm back in the area, I certainly will!!

Awesome group of owners, coaches, and members. Good luck with the move. Can't wait to come back…read moreand see it. Thanks!

Located at the NATICK Mall (right next to PF Chang). First time trying it out, first class is free…read moreby the way! Get there 15 min earlier and the coach will go through all the basic moves and information with you. Coach Sam was amazing, he was energetic (at 6:30M!), fun class! Mix of cardio boxing and strength training. Don't worry if you never done boxing before, they have everything you need! Go try it out!

Beware of very predatory and sneaky marketing! Staff gives conflicting info, and take no…read moreresponsibilities. When you send a "refer a friend" link , without entering name or contact info - and even when said friend didn't click on the link, they apparently steel this info and will cold call. Lost a friendship over this nonsense.

I travel for a living and have visited close to 100 boxes globally over the past 5 years. I feel I…read morehave an objective perspective on what makes a CrossFit Box exceptional. I have been traveling to Boston for close to two years, and have visited 8 boxes in the area. I have a choice at what box I attend in Boston, and that choice is CrossFit Synergistics. Here's what I look for in a box listed in priority: 1. Good coaching. Can the coach improve the individual or are they just managing the class? Do they know when to suggest that an athlete scales or increase weight/reps? Do the coaches adjust the program based on individual needs? Do they have years of experience or just a level 1 cert? 2. Programming: A good balance between strength and metabolic conditioning is important. Does it offer specialty classes (i.e., olympic lifting, strongman, nutrition, endurance, etc.)? 3. Coach-class size ratio: Anything over 20:1 will not give you the attention you deserve. 4. Facility/Equipment: Does the box have enough equipment to support a class of 15? Can everyone work in a safe manner without stepping (or dropping weight on your neighbor)? CrossFit Synergistics rates 5 stars across the board! Their coaches have several years of experience coaching CrossFit (not just being a CrossFit athlete). Their programming works for the 60 year old retired teacher and the competitive athlete. The class size is typically 10-15 and they offer classes several hours of the day to fit any work schedule. They make effective use of their current facility and have more equipment than most of the boxes I've been to (15+ rowers, 10+ GHD's, etc.) This box is the best in the area and in my top five globally. With the move to a new facility in a couple weeks, this box will be deserving of 6 stars!

Next month will mark two years since I started at CrossFit Synergistics and I love it! I've tried…read moreout a few other boxes in the past but I've never found one that I feel more comfortable at or enjoy more than this one. CrossFit can be somewhat intimidating at first but the coaches and other members are so encouraging and helpful and really help ease those feelings. I've never really enjoyed any type of workout plan enough to stick with it for more than a few months but CrossFit and this place changes that. I go anywhere from 3-6 times per week and it's always such a good workout - I've made a lot of progress - physically and mentally since I started. I definitely recommend checking it out!

The hour goes by quick and I always work up a sweat. As lame as Jazzercise sounds when speaking of…read moreit in a retro manner, it is hardly lame now! It's not as crazy as Zumba but still gives you a good work out. The gals in this studio are so kind and welcoming - which is a great plus! Love the weekend options too!

From the owner: Jazzercise Westborough Fitness Studio in Westborough, MA offers Live online dance fitness classes…read morethat challenge and motivate all levels. Scroll down to see our schedule and join us online!

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!

I love this place! It's a great way to exercise and get both the infrared and sauna exposure all in…read moreone. Cardio classes are difficult! Yoga, stretch, core are also difficult but in a different way. You can come 24hr a day, multiple classes and times. Plus there's free weights so you can get a pump session in addition to the hotworx classes This place was so good during the winter, that infrared light really felt good! The staff is friendly and helpful. Highly recommend joining this place. Use this place alone or in conjunction with your workout. Take care of yourself and add those stretch and core classes.

I started working out here nearly a week ago with my daughter and husband. We love it!!! Workouts…read moreare either 40 min or 15 min and we sure sweat! They have showers in the bathrooms so my husband can shower before work. Yes! Results are amazing just after 1 week!

TLDR: it works! Try it!…read more CrossFit saved my life. I was in the midst of a divorce and had lost 50 pounds due to stress. I worked from a desk, and was a couch potato at night that couldn't bench press my own body weight. I was on sleeping pills, anti-depressants and was not eating. Mike encouraged me to stop by and try a class. So I did! It was a small class. I think there were 3 of us, and I had brought a friend! Brian was the instructor. He had a quiet, calm voice. He asked to look at my gait, and what sports I'd played, while he probably sized up how hard he could push me. :) I remember being a little sore after class that day but I came back. And it was after one of those first week's classes that I remember driving home happy! I was staying with friends and I burst into the kitchen smiling from ear to ear as they were getting ready for the day. Endorphins! And I was hooked. I had been a member of many gyms. Mostly for less than a year. The habit never stuck. Gyms don't give personalized instruction every day, nor do the members cheer you on and congratulate you after a workout. Gyms don't have a long term plan or program. Mike does! This sh*t works. I gained the 50 lbs back. I lifted 400 lbs. I did a muscle up! My advice to you is to try it. Pay for a month. If you like it, you will wonder why you didn't go sooner. If you don't like it, you might like the people and coaches and make some friends.

There are so many activities and sports available for kids now it can be pretty overwhelming for…read moreboth parent and child. When it comes to choosing, the opinion of someone you know tends to be the best way to go. I cannot say enough good things about the experience we have had with Crossfit Prototype/ Prototype Kids. The entire Team here is amazing. They are knowledgeable and careful. They know how to motivate and how to engage children of any age, and the best part, they tire out the child in a single session. The options are simple, pay for unlimited classes or go the punch card route. At the end of the day, it costs no more than most kids activities. If you haven't done it yet, check out their Facebook Page and website. Better yet, bring your child there for a class, they give the first one for free. So no harm, no foul if they find it isn't for them.

I went with some friends this morning and collectively, we all very much enjoyed the class…read more The desk staff was welcoming and the Coach did a great job taking control of her class and ensuring client safety with cueing and also adding regressions and progressions to the exercises. The only reason I didn't give yall a full 5 stars was, I wasn't crazy about the order of the exercises, themselves. It was too many squat variants in quick succession. I feel if we went lower body to upper, push to pull, lateral movement to a hinge or isometric hold (for example) it would give the client more time for that muscle group to recover and essentially produce better quality reps throughout such a long duration of work and minimize any potential injuries as well. All in all, the place was clean. I like the color scheme and I also liked that we all wiped down our own equipment between uses. Thanks again Ladies!

The best workout I have ever experienced. Cardio combined with weights, you cannot burn calories…read moreand build strength in a more efficient manner. Driven by metrics that you can see, the proof is in the numbers. Incredible coaching and staff, the Marlborough location provides a luxury experience like a Barry Bootcamp or Soul Cycle but without the prices.

This gym is the best for a full range of workout equipment and super clean. The staff is extremely…read moreknowledgeable and helpful, and they also offer personal training. If you are looking for a great space that offers all aspects of fitness, including pool access, Balanced Fitness Concepts is a great value.

One Zumba class down, going to another today. But Lindsay is as upbeat, easy to follow,…read moreprofessional and personable as they come. She has music I hand't experienced with other instructors but she was easy to follow yet intense enough to break a sweat A HUGE SWEAT in 45 beautiful minutes. This boutique and intimate gym is truly a "gem" in the burbs... Go check Lindsays ZUMBA wednesdays at 1215! Editing to update Loydas class - TRANSDELICIOUS! Loyda is equally high energy, teaching zumba by the formula, easy to follow with a nice fusion of latin soul food and the latest hits... Don't let Zumba scare you, in particular in this intimate setting with such good vibrations!