If you are looking for a nice and cozy place in a quiet viennese neighborhood and be right in the center of the city, Hannes' place is the best option!
I visited Vienna for 7 days with two colleagues of mine for a conference. Hannes was really kind and helpful. He was very well organized, was answering to my messages right away and had detailed information about how to get to his apartment which made it really easy for us to reach him, even if it was our first time in Vienna. He was there for us as soon as we arrived and gave us all the necessary information about the house, what to visit, where to have dinner. He suggested some really cool places that local people go and that for sure we wouldnt have found by ourselves. His apartment was really cozy, nicely decorated with ergonomic design. We loved staying there and really enjoyed relaxing at the coutyard!
The neighbohood was amazing! Full of nice places to eat typical viennes food, right next to a nice park perfect to go running, 5' walking from the river and really close to the center. I couldn't have made a better choice since I enjoy quiet neighborhoods which are in the same time right next to all the happenings! We were extra lucky to live by the river those dates as there was a big 3-day festival going on during our staying.
Finally, since we had a late at night flight, Hannes was so kind to let us stay in his place till late in the afternoon of our last day. In this way we had some extra time to enjoy the city without being stressed to prepare suitcases early.
I would strongly recommend staying at Hannes' apartment and him as a host. Thank you Hannes!