KnuckleUp Fitness Alpharetta shows 4.4/5 from 23 reviews, and its five written reviews split between enthusiastic praise for its kickboxing and Muay Thai coaching and pointed complaints about its cancellation policy, with coach Mike named favorably even inside otherwise critical reviews.
A Detailed Account of Named Coaches and Specific Calorie Burn Figures
Regina Ting Chen's review is the most detailed here: "I have been training here in the Alpharetta location for just about a year now. I am SO FOREVER GRATEFUL that I chose to sign up at Knuckle Up right when I moved here from TX. The coaches and members here have changed my life. Each kickboxing class, I burn between 500-600 calories in an hour. In Muay Thai, I get to fine tune my technique and still burn between 400-500 calories in an hour. Yes, each one is killer workout, but it's SO MUCH FUN and MOTIVATION! The coaches are all professionals/fighters and GREAT teachers! Coach Mike, Steven, Matt, and Ryan have no idea how much I appreciate their incredible classes!" I'd flag those specific calorie-burn ranges directly, since they're concrete, class-specific figures rather than a general claim of a good workout.
A Detailed Account of a Cancellation Requiring Physical Mail
Kelly Schmalz Evans's review describes a specific process complaint: "I think this is an ok gym and cancelled due to a work conflict. This is where my negative review starts. Good luck canceling! I have a month to month contract and cancelling is impossible. They force you to cancel via mail which they conveniently loose. I suspect they do it this way as there is no paper trail." I'd note that mail-only cancellation detail directly, since it's a specific procedural claim rather than a general complaint about difficulty.
A Detailed Account of a Disputed Distance Clause
Mohsen Atarod's review describes a related but distinct dispute: "I had conversation with them by the email for cancellation my membership bc of my new address is 24 miles away from the near location, but they told me in the contract you have to be 25 miles away from us! ... last 6 months I couldn't go to the gym but they still charge me." I'd treat that specific one-mile shortfall directly, since it's a precise, verifiable detail about how the relocation clause was applied in this case.
An Additional Account of Inconsistent Instructor Coverage
Elissa's review raises a different, more recent concern: "6th time this year we don't have an instructor for Friday morning classes. It's not like membership is cheap. If it wasn't for Mike's classes I would have switched gyms already." I'd flag that repeated-cancellation count directly, since it's a specific tally rather than a vague complaint, while noting she credits the same Coach Mike named favorably in Regina Ting Chen's review as the reason she stayed.
An Additional Brief Positive Account
Carmelo Utrera's review keeps things concise: "Definitely recommend this spot to anyone looking to get in shape - trainers, and staff are friendly, environment overall is amazing. Wouldn't want to train anywhere else!"
What's Missing
No review states current membership pricing. Nothing here confirms whether the mail-only cancellation process and the 25-mile relocation clause described by two separate reviewers are still in effect.
Who It's Not For
Anyone who wants a simple, flexible cancellation process, since two separate reviewers independently describe a difficult, mail-dependent cancellation procedure and a strictly enforced distance clause. Anyone who needs guaranteed instructor coverage for every scheduled class, since at least one reviewer describes repeated missing instructors for a specific class slot.
5815 Windward Pkwy #100, Alpharetta, GA 30005, USA. The website is knuckleupfitness.com, and the phone number is +1 404-339-5425.
FAQ
Is this a gym?
Yes, a kickboxing and Muay Thai training facility, according to every written review.
Who are the named coaches?
Mike, Steven, Matt, and Ryan are named directly in one detailed review, with Coach Mike specifically named favorably in a second, otherwise critical review as well.
Is cancellation easy?
Not according to multiple reviewers. Two separate reviewers independently describe a difficult cancellation process, one citing a mail-only requirement and another citing a strictly enforced 25-mile relocation clause.
How many calories do classes burn?
According to one reviewer specifically, roughly 500-600 calories per hour in kickboxing classes and 400-500 calories per hour in Muay Thai classes.