NIkola was a perfect host. His apartment ideally situated in Vienna, 150 m from the location of our conference venue. It is within meters of St Stephen Platz and of all the restaurants and cafes. Plus there are 2 metro stops very close. The apartment is fully furnished (including a washing machine, very convenient for washing clothes after a few days) and nicely decorated. Since it overlooks a courtyard, it is very quiet. WIFI internet is very fast. The day of our departure, Nikola was gracious enough to let us leave our luggage until early evening so we can explore more of the city. We will definitely book his apartment again if we visit Vienna!