I loved staying at Ada's place because it was a very convenient location near the metro station. I could walk almost anywhere from her place (it's near an extremely long shopping street) and there are grocery stores and restaurants nearby as well. Her apartment is much bigger than it appears in the pictures and I appreciated having a huge room to myself as I was able to come back to my room to relax after exploring Vienna. The only thing that may be worth mentioning is that the wi-fi doesn't work well in the room but it works everywhere else in the apartment, so you could simply sit in the kitchen and use your devices. Ada herself was very lovely and nice to chat with. Her hospitality made me feel so welcome in Vienna and I would love to return to her place again if I come back to Vienna.