I stayed here last week using Starwood points, which was a great deal considering their regular rates.

PROS: The room was huge, overlooking the beach; awesome bathroom with big tub, shower, two sinks and private WC; nice, fully appointed galley kitchen; HUGE TV, beds and pillows were very plush and comfortable; service was prompt and friendly; they checked us in right away when I arrived exhausted at 9 a.m., which I appreciated. Very nice gym, lovely spa, and pleasant pool area.

CONS: Pool area is a bit small, and most of it becomes shaded by about 2 p.m (at least in January) since the sun gets blocked by the building. The hotel will give you towels to go across to the beach, but chairs (rented by the city) are $5 a piece and umbrellas are $10, so a couple will be paying extra $20 per day if they want to spend any time on the beach. You'll be charged a lot for everything, including parking, and things like "delivery fees" added to room service bill on top of the usual "service fee". Wireless internet was hit-or-miss in the room. You will not get cel phone servie in the hotel due to vaultlike reinforced steel construction (which makes the place hurricane-resistant, but also expensive if you need to use the phone -- ended up paying over $50 for 4 SHORT calls to Miami). I did end up getting get cel service at the pool, though.

I would descibe The Altantic as a sleek, pleasant luxury hotel similar to the good hotels in South Beach, but NOT a resort property.