I took a couple spin classes last year. I don't like them. Went to two diff. classes just to give it a try. I don't like the seat (very uncomfortable), I don't like the REALLY loud music, I don't like the bike setup at all. I'd rather sit on my trainer at home and watch tv- and I don't really like that either (but at least I'm on my own bike in my own house).

Spin class isn't for everyone. I know LOTS of riders that love it, tho. Maybe I'm just weird.