Airbnb is based on trust. That is why there are reviews of travelers, and hosts.
First, this host did not respond (at all) to a request for compete information on check in before we left on our six week trip (a fully paid reservation). The reason was to print out specifics to make the trip more relaxing. NO Response!
The communication we did receive 48 and 24 hours before check in were muddled and confusing. We received some directions from the airport, some in German and somewhere along the line Airbnb thinks we must have a smartphone to travel (download app to open door). NO we need money.
Second this is the noisiest flat we have ever stayed in. Might work in winter with the windows closed (NOT IN SUMMER).. Third there is mold in the wall around the bathtub. Not what we expect from an Airbnb host.