I stayed at Dominik's place for a month. Dominik was a great host - communication with him was always clear and prompt.
The apartment has high arched ceilings that add charm to the whole place. The room itself is spacious, with a really comfortable double bed, a desk for work, a dining table, a large mirror and loads of storage space. Kitchen is also very well equipped, with all the appliances and utensils that one would need.
Location of the apartment is also great - very close to the main train station of Vienna, number 18 tram stop and U1 U-bahn station. Hence, getting anywhere in the city from the apartment is easy. Additionally, there are plenty of grocery shops around. Moreover, the apartment is located in the 4th district which borders the Innere Stadt (the first district) with all the tourist attractions. Also, the apartment is located right next to the Belvedere palace and walking distance away from Karlskirche.
Needless to say, would not hesitate to stay at this place again.