Had a bad check-in experience and wound up canceling my stay. Arrived to the apartment half an hour after check-in time to find its key directly in the door (complex was still gated by a code) and the lockbox unlocked despite expecting both to be secured. Someone tried to open the door twice over a 15 minute period without knocking or saying anything at all; the deadbolt kept them out and they said nothing, just walked away. Was told by the host that the whole sequence of events was explained by the housekeeper needing to take a picture to prove they had cleaned the unit (at this point it was 50 minutes after check-in). My partner and I felt insecure given the circumstances, and dismissed rather than assured in our correspondence with our host. We felt we had no choice but to book last-minute alternative lodging and cancel our stay to feel safe.
One more thing to note: the Airbnb listing mentioned a smart lock, but our check-in instructions didn’t provide smart lock access.