We really enjoyed our stay at Mathias' place. The bedroom was very comfortable and cosy, the location and area were very peaceful, everything was clean. The only downside was a 10mn walk to the metro station (2 stops by bus), but then it is fast to get to the city-center, and a busy schedule in the daytime wasn't always convenient at night, but Mathias was a very flexible host. Overall, we had a great experience in Vienna, and the accomodation was lovely. We definitely recommend.