I have staid here for an extended period of time (4 months), while working in Vienna and also having some holidays with my wife. This apartment is great! Very good location, just steps away from the U-Bahn, and close to the inner city. The apartment is spacious, and well-equipped. Our hostess Mrs Bozica was very friendly, and reacted promptly on requests (even a more complicated one, like me asking for a desk to work on). And, as a surplus to what we expected, the apartment appeared to have a balcony! (Just made in Spring 2018).
So all in all, totally recommended!