The Atlantis is expensive - hands down. Why? It's on its own island! You go over a small bridge & you are on the island. If you want eat, stay on the mainland (you'll see what I'm saying when you get there). There is a lovely place right on the water (forgot the name) just to the right of the bridge as you go past it. I think it was 2 stories high or something.
Atlantis? Nothing spectacular. Beach, water, lazy river ride, casino. Too much hype on it. It's overrated.
The ships dock right there downtown, so you'll see the Atlantis from the ship. It's the tallest thing on the island.