Roman's apartment was clean and perfectly situated for our stay. We were a ten minute walk from Stephansplatz, but that was far enough from the center for peaceful sleeping.
There was also a very close metro station (2 minutes), which served two lines. This made going further from the center, like to Schönbrunn or the wineries, quite easy.
The washer was small, but was very helpful for the middle stop of our 3-city journey. Drying lines were available above the shower.
We would definitely stay here if in Vienna again.