Katalin's apartment is very comfy and nice, great for short stays. Its location is also very convenient, just a few minutes' walk from bars, restaurants, supermarkets and an underground stop (U3 line). It is in a quite neighbourhood, next to Mariahilfer Strasse (shopping street). The museum district and the historical centre are just a 20-minute walk away.
Katalin is very kind and her answers and instructions are fast, precise and easy to follow.