Did not meet host, just met chap who let us in and collected key at end of stay. He was business like and punctual. the flat was beautifully furnished and decorated. Comfortable furniture, modern kitchen (instructions on how cooker works might have saved some time), nice bathroom.
The location was wonderful. It's a great neighbourhood - leafy, quiet, lots of cafes and restaraunts and bars in close proximity. Very handy bus stop 3 mins away - bus goes straight to epicentre of Berlin.