Christoph and Claudia granted us a very comfortable stay during our conference in Vienna! The apartment is exactly as depicted at the profile: convenient located in downtown Vienna, just within spitting distance of the metro station Volkstheater; clean and quiet as well! Unfortunately Christoph couldn't make it to welcome us but Claudia did a perfect job kindly showing us around through the flat with it's well equipped kitchen with good Espresso maker, giving us really useful tips in terms of public transport, good (nearby) restaurants and locations. WiFi worked out quite good with as well. Christoph quickly responds to phone calls! We highly recommend this place!