OVERALL VERDICT: Not a recommended buy.
WHY: With the hundreds of Metabody passes being sold through Groupon, most of these classes fill up before the expiry date of your pass. The classes that are provided by the partner businesses are intended to provide a sampling of what is offered at each location, and therefore limited to the number of classes available, as well as limited for the number of openings in each class.
MY EXPERIENCE: I had to book classes at least one month ahead or more to guarantee a spot. When partner businesses needed to cancel or change the times of their classes there was little choice on picking another Metabody class to use the pass because everything was already booked up. Not much luck on the waiting list either, and barely managed to use my pass.