I stayed at Guenther's apartment for a month and it was perfect. The location is great, it is very easy to reach the center of the city on the U3 line which is less than 5 minutes from the flat on foot. The apartment is bigger than the pictures show and it is equipped with everything you need for a short/ long stay. Furthermore, Guenther was an amazing host. He replied very quickly and resolved any queries we had. 100% recommend staying here!