The house was great! We were a group of 6 and the fact that the apartment has 3 separate rooms with bathrooms in each one was very nice. The living room is also very nice to hang out.
The apartment is located in a quiet street, so there is no noise at night. It has greet access to metro and tram, which made our travels easier.
The check-in is done in the hostel in front and the host was very helpful and gave us a demonstration of the apartment.
It is a very nice place to stay in Vienna.