This has been the worst experience on airbnb yet.
After about 5 long messages from the host during the week prior to our stay he required me to study the check in manual and quizzed me on it. Then when we got to the place at the agreed time, there was no key in the key box. The host couldn't be reached by any of our messages, be it here on airbnb, or his personal number, while we were freezing on the street, outside of the flat. After a 2hour long reclamation process with airbnb we finally got to our new accommodation.
I wouldn't recommend this person to anyone, please beware and don't book this place. It's a scam and it was very annoying.