I love this place. I was posted to the Phoenix area for a short-term work assignment and needed a place to work out for a few weeks. I told them how long I was going to be in town, and they quoted me a very reasonable (low, even) flat rate. Minimal paperwork, too. No b.s. with initiation fees, recurring charges, two-month minimum, or anything else.
Friendly staff; personal trainers are available but don't hassle you if you want to be left alone and do your own thing.
Plenty of space and equipment, so you can get through and get your workout in, even when it's crowded. Some of the stuff is older, but everything is very well maintained and receives plenty of TLC.
Best deal in the area - no one else comes close. (And I looked!!!)