We spent wonderful weekend at Christoph's apartment. The flat is large, comfortable, well equipped and elegant, and gives a taste of Habsburg Vienna at very first sight. A neighbourhood is entirely residential and calm, with wonderful viennese cafés (such as Goldegg) and all services nearby. Around 5 minutes of walk from it there is Belvedere palace with majestic French-style gardens. Christoph was very helpful and responsive.
It was exactly what we were expecting from such place. Highly recommended!