I finally decided to buy a smart phone and made the mistake of asking a stranger what kind of phone he had and how he liked it. It was an Evo and I literally had to cut him off after 5 minutes of complaining because I had to go. Anecdotal, I know, but I wouldn't go anywhere near an Evo after that.
Use it as your primary phone. At a cursory glance, it seems fine, but you find all the quirks when it's what you deal with day to day. If AT&T wasn't such a miserable experience, I'd have switched back to an iPhone already.