I highly recommend this flat. My family had a wonderful stay there and even host Christmas diner there. It is very spacious, clean, and very convenient (3 showers, 2 toilets...). The area is also perfect: 2 tube lines, and close to Waitrose, cinema, and shops.
Carolina is very responsive to emails, very helpful and welcoming (some treat and a warm note were here at their arrival)
She also adapts to your needs and number of guests.