We stayed in the Flats’s place for one week in July. The apartment was clean, quiet and well located. It is walking distance to the city center, and there is a subway station three minutes walk from the front door. Being there during hot weather, we appreciated that the air conditioning worked very well. The hot water stopped working twice, but came back on in about an hour. When we contacted our hosts about this, they responded immediately. They were reliable, and provided any information that we requested, such as recommended local grocery stores, bakeries and restaurants. If we ever return to Vienna, we would certainly stay here again.