I had a great time at Hannes place. The apartment is big and everything was conveniently there for a comfortable stay : kitchen stuff, coffee machine & coffee, towels, soap, ... all I had to buy was the food (obviously). I would recommend it and come back.
Transportation is 2 minutes away, grocery store across the street... I only fell in love with Vienna even more during my stay.
Hannes is easy to communicate with, will react and recommend you with what you need.