Let me begin with saying that Karl has been a wonderful host from the moment i requested to book up until the check out. He is very helpful and gave us plenty of tips and instructions on how to get around and things to see. on checkout he kindly stored our bags for the whole day as we had a very late flight.
the apartment is on the top floor of its building so plus for the sunset view, it was clean and equipped with everything you need. Karl even left some basic amenities for breakfast. the area is very well connected to city centre by public transportation or a 45 min walk.
if you are planning a trip to Vienna this is the place you want to book!