These classes are a lot of fun. My friend and I have been doing them for a couple of weeks now and they really kick our butts (literally). We've both tried a few other studios and while I like everything I've tried, the booty barre classes really give you a more intense work out since there's bursts of cardio. I've had classes with Chandra and Gabriella and they both give a really good work out. I've noticed the classes have more of a mixture of demographics which makes me a bit more comfortable. The class sizes can get pretty big but I've never felt like we were sardine packed. I haven't tried any reformer classes here yet but that's next on my list!