We (a family of five that includes 2 teenage children and a 10 year old) have just returned after staying for a week in this lovely apartment in Vienna. I have only positive things to say about our stay. I confirm the positive feedback provided by others. In short,
* excellent location
* clean, quiet and very well-equipped apartment
* great communication (and readiness to help) from the hosts

"Why couldn't we always get such apartment for our holidays," a comment from our rather choosy daughter sums it up. Thank you, Rainer and Rita.