We had a nice experience at Agri&Roger´s place. It´s pretty far from the city centre, but very close to the tube with a direct line to the centre. They are lovely hosts, the room was nice and clean and the breakfast was great and plentyful. Very good price/quality-balance.
After arrival we had lunch at the Old White Lion, a typical British pub nearby (between their house and the tube). A very nice place with simple but good food. Tip; you have to order at the bar!