Flying into the C Concourse of Phoenix Sky Harbor International Airport is kind of like walking onto the set of a 70's porn flick. The walls are brown, the floor looks like it hasn't been cleaned in ages and there might just be a vibrating bed somewhere around.
That being said about it's appearance, I've been at worse airports. With the weather ususally being so nice, delays are at a minimum. There will be a ton of walking, which is great for the glutes. If you already have rock hard glutes, you can aim towards the automated people movers to get your rock hard self around. Oh yeah, and there's free WIFI which only seemed to work about half the time. Seems about right for free.
I don't have any problems flying into PHX, I just would rather find another place to spend my layover.