All attractions except those in Toy Story Land were walk on. I did ToT three times in a row and lifts were less then half full. Lines for characters were around 15-20 minutes max, except the "seventh sister" from Star wars was alone most night, probably because no one knew who she was
I waited 20 minutes for Chewbecca and Rey, 15 for Dart Vader, 5 for BB8, 15 for Capitan Phasma, 15 for Oswald, 3 for the seventh syster, 10 for Sweetums. Queued for Clarabella, but it was near the end of the evening and the line was going very slowly and I wanted to try to get a ride in TSL so I left.
Ewoks were meeting near the Star Tour and the line looked very long, if you're interested I'd say it's the highest priority of the evening.
I saw the DVC execs were talking with people near the Hollywood Brown Derby but I didn't talk to them.
I went to Toy Story around 11:30, did SS with 10 minutes wait (was listed 15 in the app) and SDD with 15 (was listed 30), which is a very fun ride but not worth much more than that. Toy Story Land was busier than most evenings at park close.
I think they got the number of people attending just right, there wasn't much to do, more people and it would have been a much worst night for everyone.
It was a fun event, I was happy to be able to attend, but not something to stress about. For comparison, Halloween Parties are much better with all the special entertainment, more characters to meet and small extras on three rides. I would not buy direct to have access to the parties, I would not book a trip to attend one. It's a fun extra but nothing to stress over.