Delicious but a LOT of sugar. You can get one at the Fountain View shop in Epcot, too! We tried one last year but didn't like the fact that the cookie was thick. It got to be cumbersome to eat, but tasty of course!
My DD and I shared one last year and we ate it as a snack around 2:00 or so, and we still weren't hungry for dinner later that night at 6:30. I'm sure we could have done a whole one each but wow I'm sure I'd have been stuffed for 24 hours.
I guess we're light eaters! It always works out somehow, probably because we eat so much ice cream and dessert at Disney that the idea of scarfing one of these sandwiches seems too gluttonous! After we finish, we know we'll be sitting down to dinner in just a few hours, which means another delectable treat!