Have you initiated the correct action to fix the toilet? See this post.

Smelling the room is discussed in this thread.

Since the first bathroom was available (of course) first, many peeps do seem to choose that one first, however, if there is someone already in the first bathroom, they will go to the second one.

One of my own peeps would always go to the second bathroom - they definitely seem to have their own preferences, just like we do!