I stayed at John's place in November when it was freezing cold in London. My room however, was warm and comfy and I felt very much at home there. I was made to feel very welcome by John and Chris and Henry the cat who was very sweet. The area is quite close to public transportation and there are pubs and shops near by. The street is very quiet and the area is totally safe. The best way to get into town is by bus, even it it takes longer than the tube.
John provided excellent information before my trip which helped me finding my way to his place. I can only recommend John's place to anyone wanting to visit London.