I've been using Google Chrome since it was released (downloaded it like... 5 minutes after it went live) and I think it's great! I still love Firefox and all the plugins it has but, right now, I'm sticking with Google Chrome. I love that pages load insanely fast, too.
I've heard a lot of people have been having trouble with Google Chrome spitting out error messages and stuff when trying to surf the web, but I've yet to face a single problem. My experience with Google Chrome has been pretty darn positive so far. I'll definitely be keeping my eyes open for when Firefox 3.1 is officially released, though.