We stayed in Claus's beautiful little apartment with our 4-year-old and infant and had a wonderful time in Vienna. The apartment was incredibly clean and tidy, the beds were comfortable; we had access to additional towels and linen, and the kitchen had many of the necessary condiments, such as cooking oil, sugar, salt, pepper, a selection of teas. The location is perfect, as the apartment is situated in a quiet street, but within walking distance to all the major beautiful sights. One little quirk about the apartment: a couple of the floor boards are quite squeaky, so if you're a light sleeper and someone uses the loo at night, you may hear it! But overall, this is a great find, and we would definitely go back again. Plus Claus is very pleasant to deal with. He was very kind to install a baby cot for us.