We stayed at this house during a 1 month trip around europe. This was hands down one of the best rental properties I have lived in. The apartment itself is wonderful. It is in an old 18th century building opening into a pedestrian only square (Judenplatz). This is in the heart of central Vienna with all major attractions - Stephanplatz, Museum quarters, Danube boats, Metro station etc within 5-10 mts walk. There are several grocery stores, banks, Gelato shops and many restaurants within a 3mt walking radius. The main shopping area is no more than a 5 minute walk away. The apartment itself is furnished impeccably. The apartment has tall 14 feet ceilings with beautiful curtains and furniture. A fully stocked entertainment unit with a good library of movies for all tastes. Newly remodeled bathroom, well equipped kitchen and a washing machine. The apartment has an elevator which made taking things up an down very easy. Of course there was the added bonus of being right on top of the Arthru Grimm bakery.. so a cookie or pastry craving could be satified within seconds.. We loved every minute of our stay there.
The best part is the owner Christian... he is incredibly responsive. During waking hours, he would reply to emails within the hour. In addition to providing answers to all our questions, he was also very helpful in making recommendations on places to visit, places to eat and the best ways to get around. He also maintains a very good collection of tourist manuals in the apartment. He is also very punctual and provides you with very detailed instructions. He also provided us with a local cell phone to use while we were visiting. this was very helpful for us as we were visiting from the US and didn't have phones that worked there.
If I had to nit pick and come up with things to find fault with the two things i could mention are 1) being on a pedestrian only street, cabs have a little tough time finding this place. However, Christian has provided an alternate address nearby that is acessible by car which helps. Serioulsy, this was not really a problem. 2) The toilet & shower are in two separate rooms, adjacent to each other. The toilet room is a little tight and doesn't have a sink. This can be a minor inconvenience depending on your hygine habits :).
If I were to ever visit Vienna again, I would stay here again without even the slightest hesitation. I would also recommend it to any of my friends or family with not even the slightest reservation.