Although the exercise and sweating is pretty awesome, there are definite issues that are hard to ignore.  First, there is nothing to help new people understand what they should wear or bring with them.  Second, the instructions for what to have in the class are non-existent.  Third, there are so many students in the class and the instructor is all over the place so new people haven't the slightest clue of what to do.  The only way I was able to do at least something was to watch the person next to me.  The instructor provided NO instruction that made sense for beginners and conducted class like everyone was a veteran.  There needs to be separate beginner classes for sure along with some material or something on their web site that explains what you need and should bring.  The instructor should have smaller classes and be cognizant of what special requirements the students need (such as carpal tunnel and alternate positions).  Very disappointed with the setup and lack of instruction.  Also, after 7pm, there is no one manning the front desk and they lock the front door so you'll have to unlock and leave yourself if you happen to leave early.  If you do happen to go, here are some tips: 1) show up 15-20 minutes early your first time for paperwork 2) bring a yoga mat, yoga mat towel, sweat towel and bottle of water 3) highly suggest sports bra of sorts for the women and only shorts (no shirt) for the men 3) wear flip flops or slip-on/off shoes 4) leave purse/valuables/stuff in the car or at home 5) if using a card for payment, get some kind of small wallet that you can clip to your yoga mat or wrist 6) inside the classroom there are no shoes allowed and little or no talking 7) the room is a long rectangle and if a lot of folks are there, be prepared to be close to your neighbor.