We (2 adults and our teenage son) stayed at Roman's place for 3 nights. The apartment is even better than described - spacious, very clean and very nicely furnished. Most importantly for us, the location is very convenient to walk to sights in Vienna. We were greeted at the apartment, by Roman's assistant who gave us a quick tour of the apartment. Although we didn't meet Roman, he responded promptly to questions and also sent us detailed information on sights and restaurants in Vienna. I would highly recommend Roman's apartment for your stay in Vienna.