We had a good stay at Justina’s in Vienna. Communication was easy and she recommended us many different places (restaurants, bars etc.). The location is absolutely perfect, right in the city center so you can do everything simply walking. The flat is located ground floor, so when it’s sunny you wake up with a nice natural light in the bedroom but the rest of the apartment is quite dark (not a problem for us though since we were always out). It was a bit humide the first days, probably because of previous rainy days, but for the rest rather comfortable.