The map knowledge required just seems intense as fuck.
It's not that bad.
It's a bit overwhelming at first but I found the learning curve pretty intuitive.
The design is
very intuitive. For starters, nearly every room on every map has a single large object of note, and/or is a specific type of room. And these objects and types are the same across maps. For instance, many rooms have a piano, a stage, a car, a pool table (there's more to it than asset reuse). Many maps have a kitchen, a library, a bar, a gym, a dining room, a laundry room, etc. Also, every area has an assigned name (visible on the bottom right of your HUD, next to the compasswhich is really useful), and consistent with the aforementionedthese titles are shared across maps i.e. "Kitchen 1F," "Reading Room 2F."
And some maps are even segmented by distinct colors. There's lots to learn but they've been made to be learned, and learned efficiently.