Rainer was a great host. Entry was simple and quick. Apartment features all worked in straightforward way for us. We were a family of 5 with 3 boys aged 10,13,15. We didn't spend much time there other than in the evenings, and we ate out so didn't use the kitchen much. The apartment is very handy for the TXL (airport) bus - stop is only a few minutes walk, and Alexanderplatz also very close, which has good connections for the U-nderground and S-bahn overland trains. The area around the apartment, particularly to the west and north are full of nice cafes and restaurants, most of which are not chains, but locally owned. A nice atmosphere. Its on a residential street so doesn't feel like you are surrounded by tourists despite being so accessible. The flat is ground floor, but up a few steps, so feels secure and not overlooked by the pavement/ passers by. The lounge overlooks a quiet internal courtyard. There are two or three bakeries nearby, some of which do nice breakfast too (Oliv, Berlin Bun Bakery, and "Zeit für Brot" which was our favourite for bread). Groceries easily available from Alexanderplatz (although you'll need to look around for them) and there is a much larger store about 500m north. I'd certainly consider this apartment again, and staying in this area in any case. Also, the apartment was seemingly well insulated, so was very cosy; we hardly had to turn the radiators on at all (October).