It's a nice and modern flat, 600 m walk to U9 metro station Friedrich-Wilhelm-Platz. Windows from the flat are directed to inner block which is quiet after 16:00 (when the pub in the inner block closes down, very early!). In-person check-in was okay and we sorted one missing key quickly and to our satisfaction. Sometimes we could hear noisy neighbors, but not to the point of being bothersome.