We went to HS on Friday to see the holiday offerings and really enjoyed what we saw! It was a higher crowd day so that probably affected our timings. We didn’t do the dessert party so I can’t speak on that, but it did look nice. If you go at 6:30 when it looks like the party starts, it would depend on park closing time that night. I walked down Sunset at 6:05 and Sunset Greetings had already started. It was really neat and we enjoyed it! We actually watched some of the shows more than once. They played every couple of minutes so we got to see them all at least once. We collectively spent probably 15 or 20 minutes over there. We watched some of it while taking pp pictures or going to a fp. Some people saw one and then left. You could possibly see all of them before the party or see them after the show.