I've been doing spin classes twice a week for about two months now and LOVE IT! The first few classes are tough while you get used to it - and bike setup took me some time with experimentation - but after that it's been great. I go to 24-Hour Fitness for my classes and it's nice to be able to go to any club nationwide and be able to spin.

The best part about spin classes are how they can make you stronger out on the road. If you really push it in class that is.