Spacious apartment. Although it overlooks north, huge windows let in enough light to not notice this. Clean and well equipped for guests - fresh coffee, muesli, wine.
Perfect for a stay in Vienna especially if you're there for a meeting at UN. Easy to reach the downtown, too - subway is just 5 minutes walk. A direct shuttle bus (8 Euro only) from the airport to the area.
Sladan was a nice host.
The only hickup was that I had to call him upon arrival in airport and arrange the meeting at the apartment. Considering that it was a short drive from the airport, I had to wait for Sladan at the place - not very good, especially if someone is after a long flight.