This is indeed the best location - literally around the corner from the Vienna State Opera, the Kartnerstrabe shopping district and many of the must-see inner-ring sights, as well as cafes and restaurants. It’s a great location for starting and finishing walking tours. The apartment is spacious (separate entry, kitchen, bedroom, and living/dining areas), and well appointed, including washer/dryer. It was also very quiet inside (and warm - we were there over the new year). Thomas was very helpful and provides lots of good local info. We would definitely recommend it.