I've never even tried SS or fixed, unless you count my very first bike: a single speed blue sears [or schwinn] bike with a coaster brake & banana seat. That was in a town with a very flat terrain.
I suppose I feel ill-informed about why I would choose this mode of cycling in hilly Pittsburgh at the same time I feel saturated with a visual sterotype of the fixie rider that I do not identify with, in part because I am female.
I imagine (without really knowing) that fixed gear would be hard on my knees. Singlespeed seems like something I'd try either as part of a specific workout routine or because from time to time I do enjoy messing with sterotypes -- just for fun but also sometimes as a serious political project.
Stefb, I'm curious what led you to try this kind of riding? Do you recommend it?
[edit] she looked like this...