We've really enjoyed our stay here. Apartment is not very large, but comfortable enough for 4 people. Its clean and bright and has everything you need for your stay. And the location is excellent. The street is quiet, but there is about 5 min walk to three different underground stations that can get you to practically any attraction directly. There are also plenty of supermarkets and restaurants around. John was very gracious host and was flexible with checkin and checkout, which really helped us.
I really hope to return to London one day and will definitely love to stay at this apartment again, and already recommending it among my friends.