Great place to stay if you're visiting Vienna. The train and metro station is a 10 min walk and you have a grocery store in front of the apartment. The apartment was very clean and Maria was very nice welcoming us.
The only things I think that could be improved are:
1. Blankets are individual in a double bed which is unfortunate. A single bigger blanket per bed would be much more confortable.
2. There are 5 bedrooms but no living room so if you plan to eat together in a big table, there isn't such option. You can put 2 small tables together in one of the bedrooms but the other tables can't pass through the doors.