We enjoyed our stay at Christians place! Checkin was great. Jana met us and let us leave our bags before checkin and Christian was very responsive on email. The apartment is located a little out of the city but it is an easy tram ride to the city and has a great washing machine. Our only criticism would be that the apartment was a little run down, some of the doors didn't lock, floor was a bit rickety and wifi at times wasn't great. However, it was great value for Vienna.