Great location, large theatre, free parking (unless you stay longer than 4 hours, then I'm not really sure what you have to do) and a solid place to visit on a weeknight when you have had your fill of being surrounded by people but aren't quite ready to hide under a rock or sofa cushion at home. I went to see Django Unchained on Monday night...it was nice and reasonably empty (maybe 10 other people or so in the theatre). It was perfect. This used to be my stomping ground when I lived downtown, but since I moved, I usually go to the Esplanade...that being said, this theatre is so much bigger and has so many showtimes that I didn't feel like I needed to compromise on anything.
A small...tiny...miniscule part of me would like for AZ Center to get incredibly busy, hip and happening (because it has all of the trappings of a place that could become something more), but 98% of me likes it just the way it is, a great place that looks nice and clean, where I can always get a seat at whatever restaurant or movie I want.