We had a wonderful experience in Katerina and Bernd's comfortable and spacious apartment, which is located at a 15-minute walk from the historical city center and has anything and everything you may care to think about (including Netflix, umbrellas and house slippers!). Bernd was kind enough to wait until late in the evening to welcome us and give us an explanation of 'must-sees' and 'must-dos' in Vienna. We felt completely at home throughout our 4-day stay and will definitely book again if we are ever back in Vienna! Thank you guys :-)