While feeling the burn during a workout is generally a good sign, feeling the burn while sitting on the sofa means your sofa is in the fireplace. Engage in controlled, constructive body burning with today's Groupon: for $55, you get one-month of unlimited classes and gym membership at X3 Sports (a $125 value), which has locations in Midtown and Marietta. X3’s normal enrollment fee is waived with purchase of today’s deal.

With 14,000 square feet of combined space, X3’s spacious facilities help members of all ages, abilities, and schedules maintain a healthy lifestyle. Take advantage of one month’s worth of unlimited access to classes in a wide variety of disciplines, each led by professional muscle sculptors and flab haters. Students can mix and match sessions in any of X3’s courses of sweat-inducing study, including intensive fast-track classes for cardio and resistance training, yoga for limber and flexible limbs (available at Midtown only), and kickboxing for thwarting the attacks of maniacal punching bags. Those looking for martial-arts-based exercise can also opt for Muay Thai, a Thai form of boxing that uses hands, shins, elbows, and knees to execute strikes against opponents and malfunctioning electronics.

A treasure trove of amenities—including top-notch equipment, training turf, grappling mats, a boxing ring, and more than 60+ weekly group fitness class sessions—is available to help students reconfigure their physiques.

Reviews

Six Citysearchers give X3 Sports' Atlanta location an average of four stars and more than 10 Yelpers give the location a 3.5-star average. X3 Sports has more than 1,980 Facebook fans:

• I love this place. The instructors are great and easy to be around - and the programs will give you one of the best full body work outs ever while learning self defense and having fun. It's never the same and not boring. – Jstew, Atlanta location, Citysearch
• Ive [sic] been to many gyms in my day and X3 is by far the best experience I have ever had with one. You can do it all here, Boxing, Kickboxing, Bootcamp, Muay Thai and Jiu-Jitsu. – Jeremy A., Atlanta location, Yelp, 4/6/10