Our stay was amazing! I didn't get to meet Andrei but he was always very responsive and gave clear informations and instructions. His partner welcomed us and was very friendly and polite. The apartment is even better than the photos: cozy, clean, very functional and the location is priceless. You can find all the main attractions at a walking distance and the area has plenty of restaurants, supermarkets and bars. If you want to have a lovely and stress free stay in Vienna, this is the place!