I do recommend cosy stay at Enrico's place in the center of London. It's easy to get from there to every interesting place in London by foot, bus, train or underground.
Host is very helpful and talkative. Rooms are small, but very clean and warm. Large common kitchen allows to eat and sit with the people from all over the world and Enrico takes care about the nice atmosphere.
Both our children and we were satisfied with our stay at Enrico's place. We'll for sure want to stay there also next time when we come to London.