I fly through Phoenix Sky Harbor several times a year. It's almost as easy to navigate as OAK.
Lots of great restaurants and bars.
Several Starbucks locations, so that, if you had to drive by the 3,098,475 locations in Phoenix before arriving at the airport, you're not out of options.
The distance between terminals and the off-site car rental facility is a bit of a hassle. Shuttles run often enough but allow for an extra 20-min if you have a flight out.