Here was my take on the same subject:
I just got back from my 2nd AE cruise, the Mexican Riviera and it was a BLAST!! 12 of my closest friends were on board as well and every one of them wants to go on another cruise. There were many people saying it was the best Atlantis cruise they have ever been on. I also have booked the Southern Carribbean March cruise with 3 other guys. This last cruise I had a balcony and it was incredible! For the Carribbean unfortunately we'll only be having a window and I'm sure it will be insufficient in that I'm spoiled now from the balcony! But either way, it's a great experience!! You can read a lot of views and questions on this (non-Atlantis sponsered) site:
http://groups.msn.com/AtlantisEvents
Hope to see you in March!
Erik