Gross and uncomfortable. When you walk in, you're greeted by sweltering heat and a shower stall full of mold. So gross, in fact, that I immediately checked out and booked accommodations elsewhere. I just can't fathom how a host would let their apartment get into that state of disarray, this isn't something that happens overnight and made me concerned about cleanliness issues elsewhere.
Oh and as a bonus - The toilet isn't even in the main bathroom, it's on the other side of the apartment in a closet.