I stayed at Judith's flat while working at the UN, which is a short walk from the apartment. The flat is peaceful, quiet, and full of light. It is very close to the U1 subway line, which takes about 10 minutes to get to the city center. Everything you could need is located nearby -- groceries, pharmacy, etc. Judith was wonderful! She answered all of my questions and was very accommodating. I would definitely stay here again. If you are looking for a serene retreat to return to at the end of the day or if you have business at the Vienna International Conference Center or the UN, this apartment is a great choice!