L.E.
Hi,
My husband, sons and I stayed at Atlantis in May 2007. My elder son was just ten months old, I was three months pregnant with my second son and my husband had to work at the resort. (Husband is a musician/musical programmer.) A such, we did not do much. However, we had a great time walking around the resort, playing in the pools and the ocean and eating at the various restaurants. Restaurant prices are fairly high. If you want to keep your total food bill down, you might eat brunch at one of the restaurants (sorry I can't recall the name of it) instead of eating both breakfast and lunch. I would go back there. This time, I would see more of the island. I don't recall the tower we stayed in. It was the tower farthest from the gym.
My parents went there a couple of days after my kids and I left and stayed with my husband. They saw the Janet Jackson performance. The experience (show, food, etc.) left quite an impression.
Lynne E