The apartment was very well located, big and comfortable. It is a great place to stay and visit Berlin, a few step far from S-Bahn and U-Bahn. All the rooms are spacious. However the dishwasher was broken during our stay... so we couldn't use it at all.
Moreover, Maria said we broke the mirror in the bathroom and asked 150€ for it while we didn't break anything !!! So we were a bit disappointed about our host.