I had a great stay at Anna's house. I had to come home late every night for work reasons, but she was very comprehensive and made me feel totally confortable staying at her house. The garden is very nice and welcoming as well. Anna had great tips for traveling in London, she even drew me a map with places to go and expositions to visit.
The location is perfect to be in the center of London in no time with the Tube (Piccadilly line) or the bus 29.
And her cat Marmite is so nice too, we got to be best friends !
I definitely recommend staying here. Merci Anna !