Andreas replied quickly to almost all of out messages and when we got to the flat, Karolina greeted us and despite we were late she got to the apartment super soon to give us the keys and explain everything. The apartment was beautiful and had everything one would need to feel themselves @ home. Moreover it was extremely easy to get around the city from the apartment, some shops and restaurants were within walking distance, but by taking the underground within few minutes one could get to the city center which filled with shops,restaurants and cafe. Next time if we'll go to Vienna, and this apartment will be free we would be happy to book it!