Sigrid was definitely the best host I've ever met. Check-in was free even when she was not at home, and so was check-out. She even kept my luggage until the train I was leaving for another area. She kept my private life very well. And her breakfast every day was better than most hotel breakfast, and 13 kinds of handmade marmalades were really the best. The location of the accommodation is a little far from the center, but you can get anywhere within 15 minutes by taking U1, located 3 minutes from home. I have no reason not to recommend this house, and if I come back to Vienna later, I will stay here again without hesitation.