Ursula's apartment is very cosy and nice. In reality it looks even better than on the photos. Ideally clear, good equipped. So many small but touching items, like books, paper map of Vienna, phone charger, etc.
Location is very good. It's near to a transport hub, but not on the main street. You can easily get to the center of Vienna or to the Shonbrunn. You can just walking to the center along Mariahilfer Str. with many shops and restaurants.
Also good restaurants, grocery, street food just in a few meters from the apartment.
I would definitely recommend Ursula's apartment to stay in Vienna.