I've been using the G2 for a week and I've been very happy with it. I need a hardware keyboard so that narrowed the selection of android phones quite a bit. Was considering the Droid, but the G2 has a far better keyboard for me (separated keys).
My only issue so far (besides wishing it was rooted already), is that the message notification is a little stupid. It only flashes intermittently, so unless you're looking at the phone for a long time, it's not possible to see at a glance that you've received messages. Have no idea how that got past UI testing. The message light needs to either be on all the time when you have unread messages or flash quickly.
Speeds with HSDPA are pretty fast where I can access it (pretty much everywhere in NW DC and Alexandria/Arlington). Not as fast as the wireless in my apartment

, but significantly faster than edge and 3G.