We went for 4 days in Vienna for a wedding at a hotel right around the corner from Andy's place. We were with our 2 kids (4 years and 6 months) and the hotels are not only crazy expensive in the area, but they also don't really accept kids.
The apartment is right smack downtown in Vienna, in a great location, We loved to have breakfast in the bakery around the corner and observe the people, the horse carriages.
The place is under the roof of the building, it is pretty well and newly renovated. There is an elevator, super important with the amount of luggage we had. Andy is very friendly and flexible - he was very helpful with our crazy and numerous requests. He also had left all kinds of toileteries, detergents, and beer in the fridge! Internet in the apartment is very fast and there is coverage all around.
We definitely had a very good time and recommend the place!