We really enjoyed our time and found everything very comfortable. It was easy to communicate with Elen, who offered tips and was easy to reach.
The place is much bigger than the pictures suggest and the roof terrace offers fantastic views over the Mauerpark and parts of Berlin. The flat is clean and everything you need is there.
The location is a good starting point for exploring the city and there are several great restaurants nearby. We can definitely recommend to stay at Elen's place.