I just got a Droid which is full of awesome! Depends which kind you get, though. Samsung is way better than Sony which I know because I exchanged so many times.
I started off with a Windows Phone against the advice of GC. Sorry guys, I should've listened. It was a great phone but the operating system was so new it did almost nothing. So I swapped for a Droid by Sony which had a better system but the phone sucked. The screen had a low resolution, the camera was poor quality, and the touchscreen was inaccurate. It highlighted whatever was to the left of the spot I touched with made texting almost impossible. So I swapped with another Droid, this time from Samsung and I couldn't be happier.
That was 3 phones in 2 weeks. The man at the AT&T store even waived my re-stocking fee on the condition I wouldn't exchange again.