The host was really welcoming and good to talking, he also gave us some nice tips for our staying :) he was able to help us when we called him.
The house is well located (near a big station - Lichtenberg) which let us go anywhere we wanted. It is also near supermarket and many restaurants. It is located in a really calm and enjoyable neighborhood.
The house is really small (exactly as we see in pictures) which may be problematic for the tallest and it is at a 4th floor with no elevator. Be also careful if you are staying at hot days because it is really warm inside.