Before the trip we were not contacted for check-in information. We tried to get the required information to get the key from the host through Airbnb: no reply, then a direct SMS message giving an estimate arrival time (8.00-8.30 pm): no reply, and finally several direct phone calls on arriving to the given address (where nobody was waiting for us): no answer. After about 20 minutes waiting we went to look for a hotel to get a place to sleep. Then the host called and finally we could agree on check-in.
We did not get an official receipt of the 49 € city tax we paid, and on request the "receipt" did not include the name whom the payment was made to.
The flat did not quite respond to the description given on Airbnb pages.
The flat was clean and equipments sufficient.