Super appartment, super host and super location.
Barbara's apartment was one of the most stylish appartments I've been to, from mixture of colours to attention to small details to the choice of furniture/paintings and so on..
Barbra took her time to prepare the apartment for us, you can totally feel the effort she put to add these little touches that made a much better stay for us. She was very generous: The space was fully equipped with everything you might need, she left us a breakfast and even bought us an extra mattress to make sure we're comfortable. She also left a big booklet that she made herself about all the attractions and personal recommendations of things to do in Vienna. She was easy to reach and communicate with.
Based on that, I strongly recommend her apartment and would totally stay there whenever I visit Vienna again.