Anna was away for the time I rented the apartment. But she had a good friend Peter look out for her. Peter was very helpful and quickly responded to my messages. Also Anna was very responsive to my messages.
The apartment itself was amazing! Peter told me that Anna is an architect and you can truly see that in the apartment. It is beautifully decorated and equipped with all the necessities.
The location is also perfect, 3 min walk to the station Wollankstrasse, from where you can connect to everywhere in the city. A huge super market is just around the corner if you need anything.
I would definitely rent the apartment again when I return to Berlin. I can really recommend it!