What can I say that has not already been said about Fez? It's fun, it's inexpensive, it's convenient, and the drinks are great.
In regards to the service, only once did I have an issue. We went during the lunch rush and waited several minutes for a table. The host forgot about us and ended up seating several other groups before I asked him about it. We ended up having to wait even longer. We were upset, but they offered us 5 drink coupons a piece for future visits. They made it right and since then I have had no problems.
Personal food highlights include the burgers, rosemary chicken sandwich, the lamb, and the fries. They also have wine fusions. Ask the server about them.
I remember the first time I ate at Fez. Something about it felt really different. I thought to myself "Am I actually in Phoenix?" That feeling soon faded as I exited the restaurant and realized I was in a Kinko's parking lot. SIGH. :)