Having succumbed to the sirens call, I just finished and tried out my first fixed gear bike. It's an old japanese made JCPenney bike with fancy lugs, which I then countered by putting on some nice butch BMX parts on (chain and rocket ring crankwheel.) So it's elegant in a really chunky way. I'll also say that if you are resourceful, you can build one with frame for $150, but the wheels will be a compromise. Anyway, I digress. Here's what I noticed:
1. Like everyone else I coast a lot more than I thought I did. I almost took a nose dive trying to get my foot into the clip.
2. Stopping by backpedalling is like running backwards upstairs. Odd, but not unpleasant.
3. As you get used to the feel, the control is great. Now I see how one could do a track stand or balance while hardly moving forward. I really like the control.
4. I like it. A lot.
Thanks to everyone here who has shared experiences. The posts here alerted me to potential problems so I was ready to deal with thing better.