Katharina and Peter have a lovely apartment in Vienna. They gave us very thorough directions prior to our arrival, and Peter was at the apartment to greet us when we arrived. He gave us a brief orientation to the apartment and some fantastic food recommendations, which were greatly appreciated. The apartment is close to a central metro location, but we chose to walk to city center (about 35 minutes) and greatly enjoyed the views. I would highly recommend this apartment to anyone planning on visiting Vienna.