This was our first trip to Taipei and we got a rude shock when there wasn't any key in the safe box upon reaching the unit in the night. After a long period of frantic tries to reach the host (no contact number was given, only communicating through airbnb website) we chanced upon a lady in charge of the rooms and she made the call to the host only to be told the room we had booked was actually doubled booked - someone was staying in there, all this time trying to pacify a crying child.
So we had to accept whatever arrangements was given to us just to get through that night (which wasn't a pleasant one given the replacement room's standard was way far below what I expected and paid for).
So in all, never ever take for granted that the home/unit you've booked would be the actual the one you'll be getting and always double check with the host days before your travels.
Would probably stay clear of this host on my next trip there...and double check!