The neighborhood has a working-class immigrant type population. It is quiet and although the following block to the metro station is a bit rundown it seemed safe and we had no problem returning late.
The apartment is spacious for the price, but not very functional for a family. The WC is in a very small space and shower in the adjacent kitchen. This was indicated, but we imagined something different. Our fault, not the description.
It is probably best suited for a group of friends.
The host was very nice and helpful and we appreciated his help. WE still enjoyed the stay in Berlin! Thanks!