Hans place is at a perfect location in Vienna, where you can walk to the tourist attractions by foot. nice restaurants, supermarkets around the apartment. the place is also very close to the public transport.
On the other hand, the property is rented cheap and I found it very dusty, unhygienic. i would prefer to pay more and stay at a cleaner place next time. I sent photos to Han during my stay and he replied that it was cleaned. May be that's the standard of the property. The amenities (pots, cutleries) were old and give a bad feeling.
I recommend this place only for young travellers. I was travelling with young children and the experience was absolutely disappointing.