We had a wonderful time at Daniela's apartment! The place was quite comfortable, with everything one may need during the stay. Location is not so central but with the subway entrance 20 meters away from the front door that is absolutely minor. Daniela was always willing to help and was available during our stay. We were in Vienna both for a Medical conference and for vacations and since the city is going to host the congress for the next years I am sure we will stay at Daniela's place again.