This is a lovely and extremely spacious apartment from where we found it easy to walk into the centre of Vienna. It is very well equipped and we'd have loved to have stayed longer than we did. If you have young children, there are childrens' books and games and also a high chair!
Harry kindly offered us a transfer from the airport to the apartment which is great for a party of adults with lots of luggage. Bear in mind though that if you prefer to go straight into the city and check in later, then the CAT service offers a fast link from the airport direct to the city centre and is free for children.