I had an amazing few days here in Vienna at Sedef's place.
The apartment was very clean and spacious and the surroundings were quiet and right next to a U3 which you can use to get to anywhere quickly. A supermarket is also right next to the apartment.
The apartment itself has everything you need for a pleasant stay.
Communication with Sedef went smooth besides that and she also came to greet me and explained everything to me.
Will be staying here again and looking forward to it!