Bettina is an amazing host. She is kind, helpful and makes you feel at home from the moment you arrive. Her penthouse studio is superb, clean, very tidy, comfortable, has a wonderful view and is located in a lovely residential area. It is close to parks, downtown and public transport. The bathroom and kitchen are quite small but just perfect for a few days. We were in four people and it was perfect. It was a wonderful choice and in case we ever go back to Wien, we'll surely rent it again.