My DS14 loved CBR when we were there in April, and so did my DS11. They loved the beaches, hammocks, food court, arcade, all the pools, and especially the marina, where you can rent the SeaRaycers if you're 12 or older.
I think they preferred the quiet pools over the main pool, just because they had more of the pool to themselves. It's an awesome place, and we're headed back in a year!