We had a great stay at Ying's apartment. It was easy to get to the center of Vienna, and the apartment itself was beautiful. You could tell it was recently renovated and the quality of everything was very very high. We enjoyed relaxing in the living room and watching the huge TV. The bathrooms were super nice. And the beds were very comfortable. There was a little bit of street noise from the trams going by, but it wasn't too bad. I used a white noise app on my phone to drown it out.