We actually had Hoop Dee Doo reservations this time but cancelled them for
MNSSHP instead. We can do HDDR nex time we go. I doube we'll go in September or October again!
If you're interested in a character dinner with at least one princess, there's one at 1900 Park Fare as well. This one has Cinderella, her prince, Fairy Godmother and two mice. We were scheduled for it this past April as well, but DD best friend got really sick that day. We were both down for Spring Break and had planned dinner together. They couldn't change our reservation from 8 to 3 on short notice!!
We are doing dinner at CRT for dinner this trip, but we're paying out of pocket instead of using two TS credits. That's just crazy but we did it the first year, not knowing any better.
The dinner is different that breakfast & lunch. The characters don't come around to tables & do autographs. We're not too worried since we'll have already done Crystal Palace & Akerhaus in Epcot earlier in the week.
Here are pics from our 2006 vacation. The CRT pics are here, with Cinderella, inside the castle, with princesses, etc.
http://flickr.com/photos/mom2evie/sets/72157600521699127/
I hope you really enjoy your trip and good luck with whatever decision you make!