We spent two nights in London at Ella and Jon's place on a tour of England. All the major attractions of London are easily accessible by walking, the underground or bus. Jon suggested a Citymapper application that worked very well to get where we wanted to go.
The home was cozy and warm and beautifully decorated! A lovely, peaceful, cottage feel in the middle of the big city. There is a bedroom off the main hallway, close to the front door, and then a living room/kitchen/dining area (private just for you) one floor down with access to the gardens. At the time we booked, the pictures did not do it justice!
The hosts were also friendly, kind and informative. We would stay again!