I stayed at Kai's flat and chose this room that has a double bed, a sofa bed, a desk so that I can work from home, with desk and bedside lamps, with furnishing being as described as shown in photos. Outside this room's window, there was a little front yard with flower pots. Bus stops and train/overground tube stations are nearby, and supermarkets and shops open till late are a short walk away, including a 24-hour food store. All other guests are nonsmokers too. When there was something not working well, I could talk with Kai, and soon afterwards, they were fixed and alright.