Sarah is very kind and always ready to help: we were here in april from 27th to 30th and we had a little problem the first day with the Bolt of the door. She got out from work and called a locksmith to resolve the situation in 30 minutes; good for the public transport: In 1 minute you can take the bus and, that takes you to the underground lines in 15 minutes. Some good shops near the house. Wonderful days in London!