As far as airports go, PHX is pretty good. My family and I fly out of PHX 3ish times a year to visit family and take vacations.
The lines always seem to be decently long, however, they always seem to move at a quick pace. Since we travel with our two children we appreciate that everything seems to always run quite smoothly.
The food choices are what seems to be lacking the most at PHX as there isn't much offered that isn't crappy fast food at "sky high" prices or basic "never heard of before" eateries. It would be nice and very welcomed change to see some quality "foodie" type places added to their line up.
There are better and worse airports to have to go through, PHX seems to be in the middle.