The room is spacious and very clean. It is very convenient to have your own bathroom and private entrance. The Northwick Park subway station is very close and you can be in London's downtown in half an hour.
Kay is a wonderful host, although we didn't get to see her much, we were too busy exploring London. She even left little snacks at our door and in the fridge there were orange juice and water for us.
It is a great room I can recommend it to anyone who needs a quiet and cozy place to stay.