Nick's place is very well located with quick access to Kensington West and Baron's Court (both branches of the District line) and was ideal for my business related travel to Westminster. This is also ideal for many tourist attractions and one transfer to most of the rest of the city. It is also walking distance to Tesco and to Kensington (Olympia) train station.
The unit is on a very quiet street and I didn't hear any noise from the neighbours.
Nick has lots of cool stuff including quality internet and television, and a bass guitar. That said, he perhaps had too much stuff for my 'minimalist' sensibilities and it may come as a bit of a shock for someone expecting a 'hotel-like' experience. This is a flat that is definitely lived in when it is not rented.
Nick was still new to this when I stayed, so he was very open to suggestions and very communicative.
Overall the flat was bigger and had a better location than most other units in a similar price range and I was very happy with my stay.