I had such a great stay at Olu's flat.
As other reviews note, the location is spot on, located on a quiet square, yet close to shops/tubes etc. The flat was clean, perfectly laid out with a patio we enjoyed being able to use. Even in the hot weather the flat stayed cool, (helped by the fans Olu bought.)
The only interaction we had following our check-in (which was great), was when his girlfriend had to collect a forgotten alarm clock - that in itself talks to the niceness that the host displayed to a previous guest.
I would be happy to stay there again - both the property and the host were awesome!