Outstanding host, place and location, we'd stay here again the next time we visit Vienna.
The flat is very cosy and stylish, the interior design is on point, it has a great all around atmosphere. It's a perfect basis for a couple of days while you explore the city, even in winter months as the heating is superb as well.
And even if the apartment wouldn't be as good as it is, it would be a great place to stay anyway, just because of location - which is just perfect. Most museums and must-see landmarks are in a walking distance, and even if something isn't, there is a public transport that will carry you there. Neubeu is fun and charming regardless of the part of the day. It's full of cute shops, great restaurants to brunch / eat dinner, and welcoming bars to spend your nights. It feels like a parody of hipster-gentrification, but in the best possible way.
Highly recommend.