This is a pass that is good for 30 days of unlimited admission to the disney parks, water parks, disney quest, pleasure island. Some come with a voucher good for a breakfast, including a character breakfast. And it includes admission to Kennedy space center and a few others. I think it's a great buy if you are going for any length of time. You can park hop but you can not save unused days.
Hope this helps. I just got mine from Paramount international travel and got a really great price