Nigel was a very attentive and generous host, and we enjoyed meeting him very much.
We found we had some issues with privacy and quiet (jet lag being an issue at the time) since the bedroom is next to the front door and faces the street. The one bathroom is shared with the host and the apartment is small.... draw your own conclusions there. The host also dog sits with multiple dogs, and friends seem to pass in and out regularly. All together it made it hard to feel relaxed at times.
Still, if you are looking for a clean, affordable spot to explore London from, and don't mind a dorm room atmosphere with more upscale styling, I can recommend Nigel's place.