Dungeons/play party spaces usually aren't particularly glamorous. I mean I have no real problem with plush fantasy dungeons but people should probably know it's more likely to be a warehouse or a mildly sketchy bar with a dance floor.

Probably a lot about limits and how people new to these things won't know what they are and it ain't all going to go smooth. Also that people have physical limitations, probably even superheroes. I'm willing to handwave a lot for fic, but I think it'd also be interesting to see more stories about people working with and around the realities of having a physical body with particular limits.

I'm sure there are other things but they're not coming to mind right now.