I'm optimistic about AT&T's LTE. So far they've handled the deployment very well and the service has been solid. I use a Skyrocket, so I'm on LTE all the time, and speeds and uptime's are great. Battery impact is lower than expected too. AT&T has a much simpler network to run too, because LTE and HSPA are quite similar (GSM-like standards), while Verizon has to include both CDMA and LTE radios and chipsets in their phones. That leads to some of the outages and authentication problems that they've suffered over the past year and even the past 2 months.