The reason we give it only a “good” rating is that the hosts neglected to state that the only window opens onto a huge construction site, expected to be there for some years. We sleep with open windows, so our first night ended at 4:30 AM when heavy machinery kicked in. Saturday-Sunday were fine, and Monday morning work started at 6:15 AM, which in our case was not a problem because we got up anyway to travel on. Closing the windows alleviates the problem considerably.
Otherwise we liked the place. A one-room apartment, but well equipped. We loved the espresso machine. The location is very good. We reached all attractions within 15-25 minutes of walking, and if you don’t like walking, a tram is three minutes away. Also three-four minutes away, on Alser strasse, are cafés, restaurants, groceries etc. The communication with the hosts was exceptional. We received answers within minutes.