Spent a couple of nights here with friends, and felt very comfortable making ourselves truly at home in such a thoughtfully designed apartment.
Our host was very friendly, even leaving chocolates and fresh fruit for us upon arrival.
The location is quite good, only a 5/10 minute walk up to Schönbrunn, one of Vienna's main attractions, and a subway just around the corner can take you straight to Karlsplatz, the centre of town & home of the Naschmarkt