The only reason we stayed in this giant maze was because of the complimentary water park entry during the stay. I am so glad we only booked for 1 night because the room toilet started to emit awful sewage odor 5 hours into our check in. The odor got worse after dinner. We didn't bother to complain because we don't think anyone cared.
The check in took forever and then the door key cards did not work the first time. It took extra time to have someone up with a new card and this precious time was taken from us being able to get to the water park asap... There was molding throughout the room bathroom, a soup dish that looked like it served as an ash tray before, a rusty balcony fence.
We moved to Grand Hyatt after one night. But we do miss Atlantis for its breakfast buffet (really good variety), its water park of course, Bread Street with really decent food, and its free in-room movie-on-demand. But in GH, we got a room with private pool for less money... and even my kids agree that we should stay in both hotels in one trip....
Conclusion is, the water park entrance fee was priced in to the room. So if you don't go to their water park, no point paying the extra for a room that should only worth much less.