Yes...it is the Dream Suite...but it is not something that any mere mortals have access to. You can not even buy your way in, it is used for gifts and rewards by Disney.
A stay in the Dream Suite, and the Cinderella Suite at WDW, is something that you can only win or receive as a gift from Disney or its affiliates. There are often a few contests or sweepstakes every year that have such stays as grand prizes. Your chances are about one in a million but it could happen! Good luck!
It is actually part of the Walk in Walt's Footsteps tour now instead of Walt's apartment so that is a way you can get in to see it. For $109 pp that is
I remember when they had the fantasmic viewing/dessert buffet in the gallery balcony. That was definitely a highlight of my first solo trip to Disneyland.