Daria & Jochen are vey recommended hosts, kind and polite. The apartment is simply beatiful (many times better than it might appear in the photos on the web); it is very roomy and large, very well furnished, clean and bright. It is, above all, located in a quiet, nice and central zone of Vienna. Indeed, it is possible to reach the city center by simply walking or using the tram (a tram stop is few meters from the aprtement and in 5 min. you are in the historical centre). In my opinion, this is the best location (from several point of view) to visit Vienna, because it is strategic and beatiful. It was a very positive experience, a beatiful stay.