My brief stay at Christoph's apartment was great. The apartment is small but the perfect size for two people. The bed is comfortable, the kitchen is fully stocked, and there was a good wifi connection. The flat is in convenient location (a short walk from the Volkstheater u-bahn stop) on a quiet road off the main street. Christoph recommended several nearby restaurants and bars within walking distance. Christoph was a great host, he was easy to contact and was flexible with our check-out time. I would recommend Christoph's apartment to any couple visiting Vienna.