Well, it was fun to prepare...to plan our costumes and the kids were excited to go, but I wouldn't do it again until the kids are much, much older. They were 5,6 &7 when we went and I just felt rushed and we didn't even eat CS/TS.
We rode a few rides, including the awesomely creepy Haunted Mansion, but missed the dance parties and photo in front of Cinderellas carriage. We did hit several trick or treat trails, but didn't really see any character meet and greets. The parade was great and we watched the fireworks backing out of the park. We did get on one of the first buses back to the resort, and we must have arrived around 11...and the kids were wiped out.
So, unless your kids are nightowls and can stay up all night, I am just not sure its worth it, especially at the prices charged! I think to maximize the special Halloweeny things, you have to skip rides, which makes for an expensive parade. We were newbies at this, I admit.