We did one when we went on our Honeymoon and loved it. We were free to do anything, and they would have rather us gone out and explored the island.
Jamaica was great, the resort was top notch, I can't think of a bad thing to say about the whole trip really. All of the people were really nice, plus they took the time to know your name, and anything you needed, they took care of. Will be going again next year sometime hopefully.
http://www.tripadvisor.com/Hotel_Rev...y_Jamaica.html