Frank is exactly what you want in an AirBnb host - quick responses, easy communication, warm and welcoming and helpful. We were two very weary travelers and Frank's welcome was very comforting.
The room is very interesting - I didn't know anything about Berlin Alexanderplatz going in, but now I have a sincere appreciation for the film. It's a very cool, well-designed space, with warm lighting and a good feel.
We both were too sick to join in the party on Saturday night, but Frank invited us to his parlor discussion group/singing get-together. One of the most interesting moments of my life was laying in bed (early, because of illness) and listening to happy Germans singing Cher. It brought me a lot of joy.
I absolutely recommend this place, largely because of Frank - he is a fantastic host and the whole space is an artistic dream.