Went to ADP to do some hour building about 3 months ago and had a great time. They are very cheap (I think I paid $50 per hour for an Archer), and although they are old and well-used they are more than adequate. They have a big maintenance hangar there and will fix anything you don't feel happy about. At the end of the day, if you can afford it, go somewhere that have newer planes, and sit on more comfy seats, but if like me you are on a budget, they are fine.
In my opinion, the happiness of the students is a good indication of the school and everyone I met was very happy with the place. In my experience of US schools, this is fairly unusual.
If you are doing quite a few hours, it's worth taking the plane away for the duration of your time there (you'll need to average 4 hours a day to do this). I did this and got to fly all over California, Nevada and Arizona. Not only do you get to see some great views and fly into some amazing places, but you don't have to fly to/from the same airport every day and stay in the same hotel!
Having flown in both Florida and California, I reckon there's no comparison - go west. And, for me, ADP were brilliant.
If you want any more info, email me. Enjoy yourself, I know you will.
[This message has been edited by Billy M (edited 06 February 2001).]