We stayed in the apartment for 1 week, great location, 5 min walk to both the U & S trains, many of Berlins great attractions are within a 30 min walk. Apartment is clean, modern, well appointed and very quite. Only negative is there is only 1 key, there were 4 of us so if we went different ways we had to co-ordinate our meeting up, 2 keys would be good. Minor inconvenience, overall it is a great place to stay in Berlin. Recommended