I went with my wife in Nov 06 and have rebooked yesterday to return in Sept 08 with Caribbean warehouse, Ive been to mexico 4 times before and have stayed in 5 star everytime but Excellence is the best I would say a level ahead of the others for me.
The rooms the food and the service were superb its an adult only and even though its a big hotel it doesn't feel it but theres still loads of space to find a corner for a private moment, I wouldnt hesitate for a minute to recommend it to anyone as the hotel name says its excellence personified.