Perfect!! Vincent is a very nice guy, he answered our questions very fast, received us (my girlfriend and me) in his apartment with an amazing treat and gave us very nice tips on places to visit and eat. He also prepared a document containing information of how things work: in the apartment, maps, telephones, netflix, etc
The room was really clean and organized, the bed was comfortable, everything looked beautiful like shown in the pictures. The toilet and the bathroom were also always clean and usually available. You can check in the pictures that his room is only accessible through the bathroom, which worried us at the beginning, but when we stayed there we really didn't have any problems with it, regardless of what one may think. His flatmates, Hannah and Patrick were really kind and helpful, which made us more comfortable.
The apartment location was perfect with excellent transport links to the city centre of Vienna. It took us about 15 minutes walk to the city centre and 5 minutes to the nearest metro station, which was really convenient.
We definitely recommend this place.