My wife and I spent a month at Petra's and Ariane's place while looking for a permanent home in Berlin. Petra and Ariane were very responsive. The location is truly amazing for anyone wanting to explore the city, next to the bustling Hackescher Höfe and yet in a very quite and pleasant inner yard. The overall cleanliness of the apartment was okay, but there were some areas that we found problematic, including the kitchen and the floor. The wardrobe in the living room had an unpleasant smell, probably because of the old wooden structure. For someone arriving for a more extended stay, unpacking suitcases and storing items can be a problem.