Communication with the host is ok.
The accommodation is just fine. The place is like in the pictures, however there are a couple of things to keep in mind if going there. I wouldn’t recommend to stay there if you are travelling alone, especially as a girl/woman. The building itself and the entrance don’t feel the most secure ones in the first sight.
All in all, quite overpriced taking in consideration the size, the location and the building status. For a couple of days ok, but not if you are planning to stay longer in Vienna.