Not so good. The key to the front door of the apartment building did not work, so I couldn't get in. I contacted the host but they said they could not do anything until the next morning. I rang the neighbours and someone let me in the building, so I managed to get into the apartment. But I couldn't go anywhere (to get food, for example), since I didn't have any way of getting back in.
I thougth this was uncool, to accept guest reservations but not be available if they can't access the apartment. Having to wait until the next day is not really an option, if it means you are going to have to stay on the street for the night! It was 11pm, so I understand that it was late at night, but I think that if they accept arrivals at this hour, they need to be equipped to be sure that the guest will be able to get in.
During the night I also found bed bugs in the bed, so I ended up canceling the reservation the next morning.