All in all, the host(s) were absolutely awesome (helpful, welcoming to the max, funny and always up for a chat), the house is simply a piece of art (in the best sense) and the location is very good (near a bus stop or you can also easily walk into the city centre).
A very small but (for Europeans maybe): the walls are "thin" so light sleepers might be disturbed by the noise - from inside or outside of the house. However we quickly got used to the noise of the planes flying over the house (air traffic even stops during the night).
We'll definitely be back :)