Actually, they don't have any classes other than instructional (to show how to do certain exercises, use the equipment, etc). I have read up on the controversy of them having expelled a member for loud grunting. I would be a little nervous about the "lunk alarm" that goes off when someone is heard grunting of spotted dropping weights. I have to say that the two local clubs I visited did not harass people and there was some grunting and weight dropping but nothing excessive. I'm not into grunting (LOL!) but I have been known to drop a weight or two when pushing myself.