It is just like hostel, you will have a private room, bathroom is shared with the rest of the guest. The location is very strategic, there are 2 U-Bahn stations nearby - Margaretengürtel for U4 and Gumpendorfer Straße for U6. You can find restaurant and supermarket within walking distance.
It was a nice stay at Dominik's place, would be a good choice if you are looking for a budget stay with basic amenity provided.