Me and my 11 year old son had a great time at Sandrine's house!
The room is lovely: very spacious, confortable and has lots of light. There is a very nice terrace also.
The location is great: the tube station is a 5min walk and after 15min you will be in the center of London. On a 5min walk one can find everything needed: restaurants, supermarket, bakery, coffee shop, etc. The neighborhood is very pleasant and allows you to have a closer experience of the life of a Londoner.
Sandrine and her family are fantastic hosts. They are super kind and give you nice suggestions and are always available for you. Our flight was delayed and Sandrine allowed us to check in quite late. A great help.
I highly recommend and, when returning to London, I'll definitely try to stay again at Sandrine's house.