The flat is in an old building very centrally located. It's on the top floor with a view towards a small square with no car traffic, close to the Judenplatz. It's quite atmospheric.
I was on a business trip and there's good space to work. There's also a small kitchen with all you need to prepare small meals. The pictures are accurate.
There are plenty of supermarkets and bakeries nearby. It's also near tourist spots and public transport (5 minutes to the Stephansplatz metro station). The opera is a 15-minute walk, the Volksgarten and Rathaus about 10 minutes.
I had a wonderful stay and can warmly recommend Ursula's place!