I don't know...I haven't really played around with room quality in a long time - does it actually have an effect on the game now? I haven't felt a need to have anything higher than adequate, though it would be nice if there was some benefit to setting it higher.
Dungeons are a place of punishment. They shouldn't be used as a waiting room.
I see the hiring process go something like this now:
Girl: "Hi, I'm broke, can you help me?"
You: "Sure, come work for me."
Girl: "Ok."
You: "I don't have a space for you right now, but if you'll just wait in the dark, dank dungeon of doom, I'm sure I'll have a spot open soon."
Girl: "Uhh....ok?"