Katharina and Peter were very quick to reply to all of our emails, and they were very helpful in sending us a map with how to get to the apartment. Peter was quick to meet us at the apartment when we arrived, and he was incredibly friendly as he gave us recommendations and explanations with the map he provided for us to use. The place was clean, and our group of five had lots of space. The location is perfect as it's a five minute walk from the subway; honestly, the location could not be any more perfect. I wish we could have stayed longer than one night!