We stayed here in May and its a fabulous hotel. We had one of the junior suites and it was really FAB. Your own sunken jaquzzi in the luxury bathroom. They are away from the main part of the hotel, really quite with your own plunge pools separated by bridges and gardens. We experienced the turkish bath and scrub in the spa, which was very nice, although a bit embarrassing as I didn't know they were going to be so thorough!
Belek was a bit of a disappointment after places like Olu Deniz. The market was excellent and there are some fabulous designer shops for bags etc (real ones!) but not much in the way of restaurants or bars. As all the hotels in this area are AI I don't think there is enough trade for them to bother opening much in the way of bars or restaurants. Everyone is in too much of a hurry to get back to the free bar.
We had a trip to Aspendos (roman theatre) which we found tremendos. We hired a car for the day, its not very far so there may be cheaper ways of getting there but we also went to the Köprüçay river area (Where they do the rafting) which was beautiful. Although we didn't do it I would recommend it and will def be doing it if I go there again as the river is not terribly fast and we saw them going over a few rapids and it didn't look too scary.
Here are a few photo I took...
http://www.flickr.com/photos/madjap/sets/72157605212074153/
Enjoy yourselves....lucky things