Ari's flat is exactly as described; it is hard to fault the comfort, size or location. Be aware though that the cooking facilities are basic.
It is an ideal place to stay if you do not want to be right in the centre of Vienna, because the neighbourhood itself is packed with cafes and restaurants, while the centre is easily accessible.
Ari's recommendations are certainly recommendable. I further recommend Ari as a host, since he was easy to communicate with.