I've flown into and out of Phoenix airport several times in my life. Well, not me, I've been inside a plane, but you already knew that.
Anyway, the airport is clean, the people working there are nice, and it's one of the major hubs for US Airways. The terminal we were in had a Starbucks, a Burger King, a Cinnibon and a Mexican spot. There were a couple of gift shops with typical Arizona schwag (t-shirts, mugs, etc.). They also had books for people who forgot to bring their own.
We were delayed for 5 hours due to weather on the East Coast which sucked, but wasn't their fault. They fed us snacks for free and kept us updated every 15-30 minutes or so.
Anyway, this isn't one of those airports with armrests on their chairs so it was easy, albeit uncomfortable, to take a nap. Travel well, my friends!