Wife and I went there last April.
Great place, hotel is nice, rooms are keep clean, staff is wonderful. Food is out of this world, you can dive 3 times a day, swim, bike, hike, and still put on a few pounds.
The diving is even better, it is the best so far for us. The dive staff is also wonderful, they will give you the best breifing you will ever hear, and there very accurate. They will not let you dive tables, you MUST have a computer. If you don't they will make you rent one from there shop. I would suggest Nitrox for this much diving. 2 dives in the Morning first dive max 100 feet for 50 minutes, second dive max 60 feet for 60 minutes. Then you come back for lunch, after lunch you can go out for a third dive, 60 feet for 60 minutes. Its a lot of diving, most will suggest you take a day off mid week, just watch your self DCS is real.
Getting there and coming home is a bit of a PIA. Cayman airlines has funny baggage limits. There listed on there web site, I think it was 1 55 lbs checked bag and 1 15 lbs carryon, so pack LIGHT. You WILL need a passport.