We have done this twice, once at Comfort Suites and once, believe it or not Atlantis was cheaper than CS. When we did CS, there was no mention of room, but we did get our wristbands and were in the pools before the DCL buses arrived. The second time, Atlantis said our room was ready, so we dropped our bags in the room first. Based on where our room was, we actually found the "lazy river" which is nowhere near the "not so lazy river" and Aquaventure. 99% of the time CS will be cheaper, but check both.