Hermann's flat is perfectly sited. You will be 5 minutes walk from a Spar Gourmet in a trendy neighborhood with bistros, Italian restaurants and a pleasant walking and shopping experience. Go the other way, out to the Ring, and in one minute your at the Strassenbahn stop; one stop away is the Schottentor Vienna public transportation office (it required walking back towards the U Bahn escalator) … for 17 E's you can get a week's pass. This is the best deal in Europe on a system that's hard to beat for convenience.
Everything you want to do is conveniently located and there is a laundry facility in the building itself + an iron board and iron to take the wrinkles out of your clothes.
Maria Theresien Strasse does not quiet down until the evening but urban living in Europe can be like that.
Very highly recommended host; I have stayed at this flat 2x and plan to do so again.