First off , let me say the 4 stars is for the "Select" area of this hotel, which is where I stayed. The rest of the property is (maybe) a 3. This is obviously an old property that has seen some renovation, but could use more.
The ocean behind the hotel (there's a small private beach) is very rough. Do NOT attempt to go in past waist-deep unless you are a good swimmer. Pool area was nice, but could use more activities ( a little dead).
Food quality at the buffet was "meh". The a la carte restaurant called Hermann's (available only to guests in the Select area) was better.
The quality of the liquor at the pool bar in the Select area is also considerably better than the rest of the hotel, so if you want good liquor, book the Select area! That alone makes it worth the extra money.
One last note on my experience in the Select area: the level of customer service was far, far above what I experienced in other areas of the hotel. Everyone I interacted there deserves five stars, from the guys at the pool bar, to the maitre d and waiters at Hermann's restaurant, and even the maid. But one person really stood out for me: Francis at the Select Reception desk (yes, we even had our own reception area!) .
One note of warning: the staff is constantly cleaning the hallways (which is good), but the floor tiles are EXTREMELY slippery when wet, so watch your step, especially after a few drinks!
One last word: remember that a little tipping does wonders for customer service...