The location is terrific, with easy access to public transportation and surrounded by a variety of inexpensive yet very good ethnic and German restaurants. I would definitely stay here again in preference to closer to town ( for example more in Mitte).
The hosts were extremely responsive, answering emails within an hour, and we're able to provide recommendations when one of us needed the services of a physician.
The apartment is quiet, and any sound from one room does not carry into other rooms if doors are closed. Nor is there noise from the other three apartments in the building.
It's nice to have a view of the street from the living room. Although there are narrow balconies, it's not clear if they are meant to be used, but this is not a criticism.
I know that this may also seem too good to be true, but we enjoyed our time there very much.