Love it! Love it! Love it! I have been to most gyms in the Phoenix area (and Boston, for that matter), and Lifetime is definitely at the top. I just convinced most of my family to join. Has everything you need and then some!
Update: While I still love this place, the maintenance is quite lacking. Pieces of equipment will be broken for over a month or more before they are fixed. I am pretty diligent about reporting equipment that needs to be repaired/maintained, but apparently the staff at Lifetime is not so diligent about getting things fixed. Very unfortunate, especially for a fitness center of this caliber and at the cost of the memberships.