The apartment was extremely clean and comfortable, nicely furnished and with two (small) balconies at front and back.
We did not meet our actual hosts, but they had arranged for Adi to meet us there and show us round and she was very charming and helpful, answering all our questions and explaining where we could park our car more cheaply than outside ( shopping centre carpark on Schonhauser Allee).
We absolutely loved the area the apartment was located in - Prenzlauer Berg - full of lovely small cafes, bars and shops. We were also very convenient for the S-Bahn metro with the Prenzlauer Allee station literally around the corner.