Ah, such a delight to stay at Angelika's place! It is in a nice residential area of the city, even if not so glamorous as central Vienna. All historical places are easy to go to by tramway, 15-20 minuts away. The flat is spacious enough, clean and very very quiet, all windows are overlooking a backyard so sleeping there was very comfy.
Angelika herself has been incredibly welcoming and nice, she provided us with all the information and commodities we needed, as well as precise instructions how to get to the place, how to use the equipment, how to get around the neighbourhood and more! Apparently she had thought about everything. Communication was a breeze, no worries whatsoever.
By all means, recommended! Be warned, however, Angelika's laughter is very contagious!