I had a really nice stay at Tina's place. She is very friendly and welcoming and I had a good time chatting with her. She provided a nice breakfast each morning which was very kind of her. The room is comfortable and clean and I slept well there. While the house is a bit outside the city center it is very near to a bus stop where you can catch a bus that will take you to a tube station. From there it takes about a half hour to get to the center. You can also take a train directly from this station to Heathrow airport, which is super convenient. I would definitely recommend staying with Tina!