We stayed at Kathrin's apartment for 5 days in Jan/Feb. The apartment was great - close to railway stations with links across Berlin and near the Mercedes Benz Arena and East side plaza with shops, cafes and restaurants. The apartment is well equipped, neat and tidy and in a new building with smart entrance and communal areas. We had everything needed for a a really comfortable stay. Kathrin and staff at the entrance were always available to provide advice to ensure that we had a memorable stay in Berlin. We would recommend Katrin's apartment.