We did the party last night, and it was an overall good, not fantastic, experience. For those asking about the kids’ sippers - they will only give them to children 9 and under. My 9 yo is very tall, and I was asked our kids’ ages when we were seated. This will sound crazy, but I’m planning a trip for WDW next year, when she will be 10, and I accidentally answered “10” at first. When I realized my mistake and asked for a sipper a few min later, a small amount of quiet drama ensued at the bar behind us while they decided whether they would let her have one. *facepalm* They brought one for my 9 yo only, and my 13 yo did not receive one. Considering that I had to provide the names and ages of our party when booking, it was a little annoying that they didn’t automatically provide one for our group. She loved it, though.
They definitely need to improve their efficiency for the check-in situation. We’ve done several parties in the past, and it was extremely inefficient last night. They walked the line to determine if people were in line for the party (some were not, due to confusion about viewing area lines), and if so, which party. Instead of giving us our wristbands at that point, they made us repeat the entire process at a podium where one person was processing each party. We arrived somewhere around 7:20, were 4th in line, and were seated around 8:10, by which time there was a massive line behind us. I would definitely get there early if you want to select your table and have some time to enjoy the desserts before the show.
Also, I ordered an allergy plate due to a family member with lactose intolerance (not a food allergy, just can’t eat cheese and mousse), and they actually brought both the fruit and the regular plate, which was nice. We missed the bread, though. It’s still the only way I would watch WOC, but they just a little more practice to get the check-in operating more smoothly.