As they say, this is the best Android phone right now..
Still there are some things you just have to live with. For example, you only get mail notifications after running the email app. You have to get an app-killer to effectively close running apps. The contacts list sometimes is all over the place with email addresses mixed with phone numbers, it took me a while to link every contact to their emails and such.
Still, these are all small Android issues. They aren't related to the phone nor are they deal-breaking. It all runs great. Sometimes it slows down a bit but they say Android 2.2 fixes that, an update is due next 3 months or something.
Android still has some room for improvement, but it's the best. 2.1 is almost up to par with the iPhone. I think this phone is a great buy.