My Fiancee and I have used the private transportation from the airport. It waited on time and drove us right away to the apartment.
At the Lobby we've met the wonderful Eva who helped us carry our things up to the apartment.
The apartment looks exactly like in the photos!!! and most important it's so close to everything on the city center (5 minutes walk distance).
Eva set us down and gave us all the instructions on how turn on everything.
She told us where we are on the map and asked us what our plans are for the trip. According to that she recommended us on what do to and to which restaurants and pubs to go including a wonderful a vegetarian place (My fiancee is vegan).
It was our first experience with airbnb and what a superb experience it was with both the apartment and the host.
If we'll ever come back in the future to prague Eva will be our address once again.