Last stayed at the Atlantic over a year ago, and think it is your best choice; but it is not for everyone. Some negatives: small pool and spa, across the road from beach, cheap construction (for million dollar condos!).
Some positives: best restaurant south of Manhattan, excellent spa (but can be booked solid), nice corner suites (regular rooms are much less nice). It is more of a city hotel (without a city) than a resort, and really wants to be in Sobe (but isn't).