The only problem with that phone is all the garbage AT&T puts on there. If you use the Navi program, you get charged $10/month. Google Navigation is free... there's no Visual Voicemail(Once again, Google Voice is free to use and setup for visual voicemail and transcribing of your voicemails). They load up your phone with all their AT&T garbage... i.e, AT&T FamilyMap, AT&T Hot Spots, AT&T Maps, AT&T Music, AT&T Navigator, and AT&T Radio are your first six apps.... and you can't remove them without rooting. VERY impressive specs, though.
If you get that phone, and you don't have insurance.. I would root it immediately. If you get that phone and you do have insurance.. I would just look for the Pro version of a launcher on the Market that will allow you hide apps in your app drawer so you don't have to go through all the AT&T crap all the time.