We had a splendid stay at Agnieszka's place. The flat was sparkling clean and we got all the amenities we needed. There is a supermarket right next to the place and convenient metro line as well. It was a bit hot since there was no fan/AC but it was all good. Although we didn't get a chance to meet Agnieszka, she was very attentive and helpful through messages. We would definitely stay here again next time we're in Wien :)