The apartment is exactly as picture. All windows face an internal courtyard, so the apartment has lots of natural light but is very quiet. It has two entrances, one directly on Stephansplatz in the heart of town and the other in the Wollzeile, another shopping street. It is directly across from the Café Diglas, with excellent coffee and pastries. I chose the apartment because I had work to do in town and wanted the teenagers with whom I was traveling to be able to walk around the pedestrian districts of Vienna on their own. It worked perfectly.
The apartment is run by a company, not a private family, and the local contacts (Yike and Sissi) were very accommodating. They went out of their way to meet all our needs -- making a key available, allowing us to check out an hour late. We did not meet them personally, but they responded quickly to all our queries and requests.
Since the apartment is no one's regular home, it is especially clean -- no clutter at all -- and tastefully & simply decorated.