Gerti's place is quiet, calming, spacious, and incredibly clean. The kitchen and bathroom are were excellent and the place had all of the necessities for a few nights' stay. Gerti is also an incredible host. She was very accommodating and very quick to respond to any questions. During my stay in Vienna, she offered me a lot of help with travelling information about the city. Her place is very near the city center, probably 15 minutes bus right to Karlsplatz, and close to all the lovely restaurants and bars of the area, but it's quiet at night. She is also flexible with check-in and check-out times, which was extremely helpful. I had a perfect stay at her place, and this is definitely the perfect place to stay in Vienna!