Gan-Ya's apartment was a wonderful place to stay while in Vienna. We did not meet Gan-Ya but her friend let us into her apartment, communication was easy and clear. The apartment is also extremely accessible by public transport-the S7 airport train is only an approx 10 minute walk from the house. Our stay in Vienna was short (only two nights) but the neighborhood was perfect for exploring, extremely walkable and with tons of restaurants, shops and sights you basically have everything you need within reach. Awesome place highly recommend.