Bernd is lovely host, he showed us the place and made us feel welcomed.
Just across the flat, there is Billa supermarket which we went often to grab breakfast or snack. There is U3 underground train right next to it, which takes you to center in 15-20mins.
We also walked about 30 mins to beautiful Schonbrunn Palace.
Flat itself was very clean with new furniture and kitchen. Everything was comfortable. You can clearly see that Bernd takes good care of the flat.