It would be impossible to say anything negative about Mathias or this apartment. The description is accurate, but if you've stayed in many Airbnb's, as I have, you will still be pleasantly surprised. The apartment is quiet, gets lots of light through its many large windows, has comfortable beds, a nice kitchen and bathroom, and is in a fun neighborhood near the city's center. Even more outstanding is the host, Mathias (we didn't have any interaction with Michael). I had a number of questions and small problems — unrelated to the apartment — that Mathias solved for me. He responded instantly whenever I got in touch, went out of his way to help, and was really friendly (he also, incidentally, speaks perfect English). I visit Vienna once or twice a year, and will never stay anywhere but Mathias & Michael's place if it's available.