We had a wonderful time in Elen's apartment. We enjoyed everything about it.
We are a couple with two boys (2 and 7) and it's situation under the roofs make it a very bright, spacey and comfy apartment, even in winter. The view from the windows and terrace is great. One could object that it is on the fifth floor without elevator and a quarter minute walk from the underground (a strategic one, Schönhauser Allee), but we got used fast and again the place is so restful after a day's walk! The neighourhood is charming (along Mauerpark). We did not meet Elen but her friends welcomed us with punctuality and kindness.