The flat is clean and had more than enough space for a family of five. The hosts did an outstanding job, had a flexible schedule to accomodate our needs. We even got help with the luggage! The place is reasonably close to the tube, only a ten min walk. The cons are the number of steps till the apartment, and the neighborhood, which felt safe, but is poor and not very central and not too close to the airports.
Btw, the nice part about the route to the metro is the farmers market and multiple small shops that sell oriental food.