The only dessert party we have done is at HS .We are Star Wars fans and the dessert party was a treat for us. We have only done it once but it was worth it to see the storm trooper interaction with our 16 yr old ds. Food was good plenty of choices alcoholic drinks weren't bad either!! The viewing spot was great not packed plenty of space. It is not something we would do every visit but it was fun and less stress finding a viewing spot.
We did it for the same reason. Our family had not seen the SW fireworks on any of our previous trips. It was close to our soon to be 13 yr old ds’s bday, and Disney is not built for teen boys. He loved it! I got him a new light saber as an early birthday present, and he was as happy as a 3 yr old on Christmas morning. I doubt we do it again, and honestly I wasn’t impressed with the desserts nor drinks, but it was worth it as an experience.