The appartment is in a nice spot in the middle of vienna. We were 4 people which was okay for the stay. 2 people could sleep comfortably in the bed, the other (bunk)beds are not comfortable.
The appartment was rather old and dirty especially the shower. The street is pretty loud so if you are a light sleeper its not for you.
Very uncomplicated and good check in
Would recommend for 1-2 nights but not much longer