The day before arriving, our host moved us to a completely different unit than the one booked. Despite booking a month in advance, the host waited until we had no other option or time to try to find alternative accommodation before telling us that they double-booked the unit on a separate platform.
Instead of this bright, spacious, main/upper unit, we were placed in a dark, cramped, much cheaper basement unit. Featured dead bugs on the floor, strange stains on the bedroom walls, & we had the displeasure of being repeatedly woken up by folks stomping around in the unit above our bedroom.
While the main living area _was_ on ground level, the lack of curtains or covers on the main doorway & window meant that the other guests in the house got a good look at us every time they used the shared walkway crossing this unit.
On the positive side, the hosts did offer to take a couple bucks off the cleaning fee & allowed us a late check-out, so at least there's that.