Absolutely worth it even if you don't eat the dessert in our opinion, but they are a nice bonus! It is wonderful to relax and enjoy Wishes without fighting hundreds of people. Our table was in the first row under the "roof" and had a perfect view of the castle show before Wishes, and we could have stayed for Wishes if we wanted, but we moved up the railing with most people when Wishes started. Tinkerbell flew directly over our heads which was fun.
The dessert buffet is great and the cast members were all VERY nice. Our only problem was completely our fault and we got stuck on the wrong side of Main Street when the parade started and ran late for the party, we still had a ton of dessert. FYI, don't a large meal close to the party, there is a TON of food!