Just came back from Oogie Boogie Bash and all in all I was very pleased with how the event went.
Our very first treat trail was Sid in Pixar Pier; as weird and off-putting as he was in photos previously posted, he was very entertaining and actually kind of a highlight. He heckles the crowd well and is thoroughly fun.
The treat trails altogether were a mixed bag. Clear highlights are the new characters in Cruella, Agatha, and Sid in that their stages are all very well-designed. Mad Hatter and Maleficent were pretty poorly placed (behind the Hyperion and in the airstrip next to Soarin, respectively), and Evil Queen got no love because of her placement in Grizzly Peak Pass which was very out of the way.
Didn't see a whole lot of rare characters this time around, though they weren't a priority. Only rare-ish character out and about was Governor Ratcliffe.
Villains Grove is amazing as always, and huge kudos to the lighting designers for the grand finale in the Wisps + Dawn. I do hope once COVID is well out of our concern they add actors in the walkthrough. They don't even have to be the main villain themselves; hyenas in the Scar section or card soldiers at the Queen of Hearts section could liven up a lot of the dead space in some sections.
Monsters After Dark is great. The metal music + the jump scare ending makes for a far more thrilling experience and a better spiritual successor to ToT if there ever could be one.
I wish the map would tell us what direction the parade starts at each showtime; we ended up wasting about 45 minutes waiting for the parade where it ended. Note to future partygoers: the 7:45pm parade starts at Pixar Pier and ends at Hollywoodland, and the 10pm is the opposite.
In all, we managed to ride about 6 rides and do 8 treat trails + parade and Villains Grove during the 5 hours of the party. Not too shabby. Likely won't do OBB again next year unless there's something totally new added.