I've always thought they were ugly... and my opinion hasn't changed.
I understand that they can be reliable, although my first experience with one was the guy next to me at my CCW class and he couldn't get through a single magazine without it jamming up. That might be part of what initially turned me away.
I have shot and seen others shoot some that were reliable, so I'm sure that it was just an issue with his particular gun... but I still think they're butt ugly.
I started a thread a couple of years ago on the subject. I had a few people agree with me... but most people thought I was crazy. Seems to be the story of my life.
For reference: http://thefiringline.com/forums/showthread.php?t=387308