We got back from the Wonder about 10 days ago. We booked a room at the Comfort Suites for $135. When the taxes, housekeeping fees and energy surcharge was added, it came to $179.20 for two adults and two 15 years olds. It cost us $20 to get over to the CS by taxi--about 15 minutes total time from port to hotel, riding with another family. Check-in took abuot 15 minutes, and we checked out while we were checking in. The walk from the CS to the Atlantis was about 5 minutes, then it was another 8-10 minutes to actually find the pool area. We got towels and then found a chair for our stuff. Then we enjoyed the pools, slides, lazy river, etc. Lunch was $25 for the family hamburger meal, consisting of four good-sized burgers with Lettuce, tomato and onion, 2 large fries and 4 sodas.
We spent from 10-4 there and had a great day for right around $250, or $63 per person, which is fairly reasonable for cruise excursions. We had been to Nassau 3 times before on the Wonder and had stayed on the ship each time. I really much prefered our day at the Atlantis to staying onboard. The one drawback was that I didn't use enough sunscreen, so I didn't get to fully enjoy CC the next day because of my sunburn.