Mine's been pretty good. A couple lockups, one where I had to pull the battery and some keyboard weirdness mostly attributed to swype and swapping around between portrait, landscape, and physical while trying to edit mistakes.
Yesterday, it was ringing, and the screen wouldn't light up at first, I hit the power buttion and it lit up and I was able to answer.
Strangely enough though, JUST NOW, I looked and it was just suddenly "off", and wouldn't turn on no matter what. I pulled the battery and it booted right up. Hmm...
Had worse stuff happen with my Blackberries, (except they never just turned off) so I'm not really complaining. Just hope the phone isn't going wonky. Ditched a Craigslist app that I was not so sure about its stability. We'll see.