I recently visited a friend in Phoenix and I went for the first time at the airport.
The airport is large and I don't even thought I saw most of it. My friend dropped me off. I went to the ticket counter. I was surprised how many amenities were outside of security. My flight was delayed 1/2 hour so I wondered if I should eat before I went through security. I decided to go anyway. Past security there were several amenities and restaurants in the terminal.
The terminal seemed older but it was clean and there was a lot of stuff. I didn't see many fancy places which is fine with me.
I didn't have any problem getting around the airport. I thought it was a good experience. You don't always get to choose an airport but I wouldn't mind coming back here.