Martin met us in the apartment as arranged, and he was very friendly, helpful, and responded quickly to the questions we had during our stay. The apartment was great. We are a family of four with two small kids and had enough room for everyone although it is a studio. Very well appointed (comfortable beds!), immaculately clean, very practical location few minutes from U-Bahn and S-Bahn and also just a short walk from some major sights. Would highly recommend.