Feliks was a very good host. The communication was excellent. He responded very quickly. He had a PDF for me with all the important information i needed and tips for visiting Vienna, very nice!
The apartment is very clean and as described by Feliks. The location is perfect. The Metroline is like 3min walking and with the Metro you get to all the important stations (Hauptbahnhof, Karlsplatz, Stephansplatz, Schwedenplatz, Prater) without changing line.
I highly recommend Feliks and his apartment. Perfect for exploring the city.