One simple word: Amazing.
Yuda warmly welcomed us in his apartment and briefly explained the usage of all its facilities. There wasn't anything missing during our entire stay. The neighborhood is peaceful and urban, with metro stop - line U6 just 2 minutes away on foot. Local stores and print shop nearby. A mall (with McDonald's) only 10 minutes away. The apartment was warm despite being November, so we barely used the heating system, such a pleasant place to be! The owner, Yuda, was as great as the apartment: totally polite and sociable, very good English and giving clear information about everything. He is not staying in the apartment so we were enjoying a high level of privacy as well. This place was even beyond our expectations and I would definitely recommend it to anyone aiming for a hospitable stay in Vienna!