Riding a fixie is definitely different. I like it, but different. I have some sore muscles on my inner thigh that I've never felt before, so they must be related to the pedal braking.
I'm not confident about my braking skills yet, so I was taking it all pretty slow. I think I'll need a rear handbrake as well in order to feel more confident.
I also am realizing that the frame is just too short. I need to swap up to a larger frame.