Very well located appartement, about 5 minutes on foot of the Wien cathedral and the main streets, and 5 minutes for the river.
Very silent, no extern noise detectable.
And big enough for 3/4 persons (the pictures doesn't render it correctly, but the dining table is a big one)

Well equipped kitchen, and as a bonus, a starting pack (milk/orange juice/bread, etc) was available when we arrived.

A perfect play for us.