Heike 's place is 1 out of 2 parts of a single house. Each part is completely independant. Ours had a functional kitchen with table, a big bathroom (with shower, sink, toilet, washing machine and dryer), living room (with single bed,couch, TV) and a double bedroom (with closet and desk). Overall very cozy and functional. There are curtains but they do not prevent sunlight.
When you have travelling neighbours you may have the need to go ask them to lower they voice because the walls are very thin!
The house is in a residential area at the end of a cul-de-sac street.
It is 30min by car to the north of Berlin. You can get to the city by bus and metro but this implies a bit of walking to the closest station.
Communication was easy going, and organisation simple.