Thank you for the detailed feedback. Really appreciate this! All of it is solid.
I agree with everything you said, and some of it has fixed or improved over the last week.
I removed building (foundation) placement entirely. Now it's just zones + room placement. (Rooms *are* the building). The workflow is smoother as well, and you can replace rooms without needing to delete first, and can hold ALT to switch to delete mode.
The large window on launch has been downsized too.
I agree wrt the GUI needing to be amazing. I'll be implementing most of your feedback soon, except perfecting the GUI :p
Thanks again!