Richard's is a lovely place if you are planning to visit London. It is located in a typical british neighborhood, quiet and familiar (althought if you want to take a few pints, there's a nice pub just below). The nearest Tube station (Kentish Town) is just less than 10 min walking, and from there it takes only 20-30 min to arrive at the main London landmarks (which, as anyone that lives in a big city knows, can be considered near).
The flat is really cozy, and it has everything you need. It has two bedrooms with a comfortable double bed each. The kitchen is well equipped, with three ovens, several gas stoves, a microwave, a toaster... The bathroom is also very nice, you can take a relaxing bath after a tiring day of sightseeing. And of course, I cannot forget about the lovely terrace, full of plants, in which you can have breakfast or dinner, or just enjoy the sunset.
As for the hosts, Richard, his brother Ben and his flatmate Robin, I have only good words. They were really attentive and always available. We arrived at 2 am, and Ben was waiting for us despite the late hour.
In case it has not been clear, I highly recommend this apartment, and would repeat without hesitation.