I had a wonderful week-long stay in Chiao-Hua's place. The apartment was quiet and cosy, with a nice little kitchen where I was able to do a bit of cooking. Chiao-Hua was very quick to respond to every message I sent while I was there, and always accessible since she lives just upstairs. Unfortunately, a water pipe broke in the building during my stay. Chiao-Hua checked in with me regularly to see how she could help, and luckily I had just enough water to get by for the couple days it took for the repair to be completed.
I chose the place with location in mind, and it did not disappoint (check out Osteria del Salento, wonderful little Italian place next door). I also love the feel of the altbau apartment (old Viennese building, high ceilings). Would stay again.