I had a wonderful stay at Alison's place. Alison is very friendly, gentle and with a good sense of humor. The house is located in a safe zone with great and fast transports to the centre. There are also two night buses that stop nearby. The house is quite and the table in the room comes in handy if you have to work-study, as was my case. I would especially recommend the place for someone thinking to stay more than a week in London.