Hermann’s flat was exactly what I was looking for in Vienna: a) perfect location within walking distance from both the City Airport Train station and the State Opera; b) a warm, comfortable, and quiet space; c) fast and reliable internet. The flat, although not exactly huge, is designed to take full advantage of all available space, and for me it was perfectly adequate. I stayed in January when it was just above freezing outside, but it was always cosy and warm inside, and also no noise whatsoever - all likely due to the fact that the building is modern and well-constructed. The shower was a joy, with plenty of room and ample water pressure. All instructions were very clear, self check-in worked like a charm. Hermann was an excellent host, he promptly answered all my questions, but otherwise left me to enjoy my time. On the whole it was a thoroughly enjoyable stay, and I would not hesitate to recommend the place, and to come back myself if/when I find myself heading to Vienna again.