We (2 adults, 3 children) enjoyed our stay (of 5 nights) at Kerstin's apartment very much. It was our very first Airbnb experience. And a very positive one.
We did not get to see her as she was already away when we arrived and vice versa. Communication was quick and the apartment key prepared when we arrived.
The apartment was fantastic with a minimalistic philosophy and a designer touch. It has to be said that it is Kerstin's home and not a space that is permanently for rent. Thus, everything is there that you need to feel at home. There is a table in the kitchen and a much bigger one in the living room. For me that has been the final differentiator (next to the size) to other Airbnb offerings, as the tables allowed us all to sit and eat together, play cards and have fun. The living room is big, you will be surprised when you enter it the first time. There is a couch for two only, if you need more a second one would be nice but we did not miss it. Usually the children sat there together and read or played with their gadgets.
The bedrooms are all to the back and it is very quiet there. We could sleep like babies. The beds are very comfortable.
The location was convenient for us (not far from the S-Bahn station "Bornholmer Str". Doing groceries is no problem, and there is a little and cozy Café around the corner. Also playgrounds for kids exist in the vicinity.
As said in the beginning we had a marvelous time at Kerstin's place (and in Berlin) and I would highly recommend it. When we will come back to Berlin in future we would be delighted to be welcomed by Kerstin again.