Communication, decoration, location and cleanness were all very good, but there is open mould in the kitchen and it smells like sewage water there (and mould). There is the front door that goes out right to the street, so you can't leave it open, and in the back there is a light well of less than one square meter where the noisy air condition is installed - so you won't open that door either. There are no other windows. When I arrived, the room had been aired, but when I came home at midnight, the smell was so strong and the air so moist that I could to stay there for the night. As it was so late, Nelson did not react to my message, in fact he got back to me at 11 the next morning. By that time AirBNB had relocated me to another place. Obviously, I can't recommend that particular flat, although Nelson sent nice recommendations for apps and was very flexible and helpful before checkin.