Rude and snide
I have nothing against AT&T but some of the people working at this particular store need an attitude adjustment. On top of screwing up by making a new SIM card of my wife's phone number and putting it in my phone, which the worker had written in front of him, they proceeded to ridicule me about how I'd purchased an iPhone 4 with a broken power button (there's a work around within iOS devices to make this a minor issue) and had a good laugh at my expense. On top of that, when I'd asked if someone was the manager present they broke out into grins and giggles, even after I started to film them with my iPhone. I'd pick a different store to go to personally if you have to do business with AT&T, the thought of going back into this location turns my stomach.