I want: great music, loud , but not too loud

fast speeds are stupid. I am not going up a hill standing at 150 rpm.

a cool instructor. My favorite is this wiry guy, a really crazed middle-aged man who you really believe. I do not need sexy.

good ventilation (!!)

not too many poseurs in the class

not to have to show up an hour early to grab a spot before it's booked

to get decently tired but not exhausted to the brink.

and yes, I also do it just in winter not to lose my shape. At least that's what got me started this winter.