Unfortunately, our experience at this apartment has been extremely negative. Of course, the flat is very nice, as beautiful as in the published pictures. We especially liked the huge windows with the panoramic view of the Hundertwasserhaus.
However, Manfred’s attitude towards us has been rather poor once we left his flat. We left the apartment in a tidy and orderly state. A couple of hours after checkout, he called us. He was very rude and complained that one of his white carpets (yes, they bought white carpets...) in the dining room had footprints. Manfred sent us several photos of the carpet via Whatsapp, where merely some traces were visible. In our opinion these traces were the result of normal use, and could probably be easily cleaned with a vacuum cleaner or so.
However, he demanded we pay a 500€ cleaning fee arguing that the carpets were very valuable and that the cleaning was very expensive. A short inquiry with carpet cleaners in Vienna turned out that this price was about 5 times above market rates for carpet cleaning (around 100€). In our opinion this demand was therefore clearly exaggerated, even if the carpets had needed to be cleaned. In the end we agreed to pay for a carpet cleaner in order to resolve the situation.
For us, this is not an acceptable way to treat guests. It was a very stressful experience and cost us the better part of our last afternoon in Vienna to resolve. If the host's attitude had been more courteous, it would've been much easier and less stressful to come to terms.
Apart from this, we would like to state that the flat is very beautiful, but it is not yet entirely finished, still lacking some furnishings and equipment.
For all these reasons, we would advise you to choose another place to stay in Vienna.