The room was perfect (just as in pictures and everything was clean). It has a great chair and a very big bed. The townhouse is always kept clean and quiet. The service offered by the owner is impecable (e.g. self check-in/check-out, always available on airbnb chat).
About location: a beautiful and silent residential area, with small lakes, near danube river, very VERY clean air)
I very much enjoyed the relaxing walks from the U2 metro station to the townhouse.
It is also close to center, it is 2 minutes by bus to U2 station and 20 minutes by metro to schottenring metro station, adding the walking time plus waiting time, it took me on average 30-40 minutes to get to center.