We spent a month in Theresia's room when attending a professional course in Vienna. We didn't meet her personally, only her father who lives in the house. He was very nice and helpful. We had everything we needed in the room (kitchen corner, wi-fi, table, comfortable bed, possibility to use washing machine). The location was also good for us since our training took part in the same area - Hietzing. Checking in and out without problems. Highly recommendable.