Reviews for the GG Seafood Sensation buffet are all over the map. I peeked at it once and it looked pretty "tired." I've read some rave reviews as well, that said it put Cape May to shame. I've never done either. Do a search on the threads on this board, and make an educated guess. While I think the Swolphin as a whole is extremely underrated, I cancelled my GG seafood buffet res after reading a ton of reviews. On the flip side, Cape May has plenty of bad reviews as well.
My thought on cancelling was this: It's Disneyworld, and a hotel. Food is mostly overpriced for what it is. Why risk it?
That being said, if you like sushi, Kimonos is freekin great for the price.