i have been to several classes and have had only positive experiences. It is not the best place for a novice participant to start. The music is choreographed and very motivating…good form is crucial! Class size can impact the ability of the instructors to monitor form and I have been in some large classes that I didn’t see any correction given personally but given to the entire group. A facility has to pay a franchise fee each month for each “body” class and each instructor must be trained through body pump. I think it is an exceptional workout especially for those that have hit a plateau.