You have to remember that it is a "Disney" cruise. So there is lots of Disney entertainment, shows, characters, parties, etc. To our suprise, the cast of the show "The Suite Life on Deck" were on board. My two daughters and my niece were in heaven!
There is an adults only pool, bar and lounge so you can escape from all the 'noise'.
The Disney cruises do use a lot of points. I did have to borrow points from my next use year for the cruise. We only did the 3 night mainly because I wasn't sure I would like cruising. I didn't want to be stuck on a ship for a week if I didn't like it. Next time I would like to do the 4 night cruise then spend a couple of days at our home resort just to relax.