Susanne's place was beautiful and in such a convenient, central location to all of the places that I wanted to visit (Albertina Museum, State Opera House, etc.) The apartment was beautifully furnished and an ideal place for my workcation. The nearest metro stops were Herrengasse and Stephanplatz so convenient to get to other parts of town as well.
The only caveat I would share is that the building is right across the street from the soon-to-be Google Vienna headquarters. Just be mindful that, for the next few months, there will be construction noises about 15 ft across the street and to keep the curtains closed during the day.
I would definitely recommend Susanne's place and would love to stay here again.