Katarina is very friendly and we had a warm welcome on the freezing day. She had shown us the flat/map and we had a nice chat with her (she can speak in 7 languages!). The flat is spacious with separate foyer, kitchen, living room and bed room. It is just a few minutes walk to Praterstern station which is an interchange for U-Bahn, S-Bahn and tram. It is also just 2 stations to Stephansplatz. Despite the area gets a little bit quiet at night (after 6pm) but it is a safe neighborhood.