We had a wonderful stay in Jennifer's apartment. We were welcomed by her father into a lovely clean apartment. There was even fresh fruit and a few chocolate treats waiting for us when we arrived. Her father gave us plenty of information regarding travel into the tourist attractions and streets with restaurants and cafes.
The location was ideal as it is within 5 minutes walking distance to both the u-bahn and s-bahn. The neighbourhood was quite and safe with a wonderful coffee shop just below.
I would highly recommend this apartment. Beds were very comfy and the kitchen was fully equipped, it even had an espresso machine.
I would stay here again if I returned to Berlin.