PHX is a big airport, but we always get through quickly. It's designed like a bus stop -- just keep moving and the other door is straight ahead of you. Baggage showed up on time. They've moved car rentals off the property, though. What a surprise!
Terminal 4 has nice shopping arcades and food courts on both sides of the security checkpoint. That makes it a pleasant experience both for travelers and for people who are there to meet them.