I am a T-Mobile customer, but i have had all more major carriers and i can tell you straight uo that ATT is by far the worst of all of them. They have too many droped calls, too many dead area's, too many phoney billed calls, too expensive calling plans, mediocore customer service. They would be nothing if Apple didn't give them the exclusive rights to the iphone. Apple could of sold 8X the iphones if they would of let it be on any carrier, but no their stupidity got the best of them again.