SPOILERS BELOW for anyone thinking of going.
We did VIP but I'd say it didn't really change much about the queuing, not that there was much. Basically as soon as we walked in and were waiting behind some ropes (three colours to put us into three teams), we were met with actors playing lab techs. Some were friendly and some had more of a gruff/unsettling manner, and one really liked interacting and asked us lots of questions but that was probably because my husband responded warmly and in character to his initial greeting (lots of compliments about our 80s clothes!) and we kept up the back and forth, he definitely wasn't that involved with everyone, and generally they seemed good at reading who was willing to interact and who wasn't. I normally dread audience participation, but this was really just within our group, more like a chat with me and my husband, and it was actually super fun and I wish we'd got to do more of it.
Then we all went into a room and had a talk from a lady playing a cheery/slightly patronising lab tech, there was a bit here where the security camera took photos of some members of the group as 'examples', but they were only on screen for a few seconds and weren't overly clear anyway.
Then we all went into a room to answer questions (all answering together with hand signals, no real interaction) and do tests (ours was a wooden 'fit the shapes into the grid' puzzle). One member of each team was chosen as the leader, and had to copy an action/pose which the rest of their team then copied, but it wasn't a big thing even for those chosen. The special effect made it look as if our 'powers' were manipulating things in the room, e.g. moving a Coke can, making spiders appear (like a projection on the wall, not too scary even if you're not a spider fan!)
At one point an actor disguised as a member of the group said they didn't want to join in anymore, and they ran off, only for us to hear some screaming/sounds of distress. This might not have been an obvious plant/part of the show to younger kids and so might have been distressing.
Then we basically followed audio/video clips from the kids (actually the actors! I was impressed!) To complete tasks in the rooms, usually by taking a specific pose and waiting until the special effects kicked in! There were no actors in roles in that part, so if you didn't want to interact, you didn't have to. The previously chosen leaders were referred to ("red leader, show them what to do" style thing) but it wasn't a big deal and everyone did the actions together anyway.
There was a great thing using screens on doors, making it look like Demodogs were trying to attack the room, and scientist were trying to get in or run away from them.
Then we went into the Upside Down through a slightly tight, dark tunnel (very short, not really claustrophobic at all) with 3D glasses on, and the final bit was a 3D showdown with El and Max fighting Demodogs and Vecna, and it did look like the dogs were jumping out at you but nothing more than usual 3D visuals.
After that, you emerge into Starcourt Mall and be prepared to spend a whole lot of money on merch! It gets a little busy later with people queuing for the photo ops, so I'd suggest doing those first if you can (Vecna and the Byers' living room were most popular, as was the Palace Arcade free to play games but there were still pockets of time throughout when the queues died down)
I noticed staff in non actor roles in place in all the rooms, so if you did need to leave at any point, I think the guidance was to raise your hand and they'll help you out.
I think that's most of it, but let me know if you have any more questions. I absolutely adored it and was buzzing all night. I hope you and your daughter have a wonderful time.