I stayed one night at Yasmin and Freddie's. Very nice place close to the airport. You can ride the buses to and from Heathrow for free within the zone radius. Easy to navigate, Yasmin and Freddie gave great directions to their place. There is a bit of walking involved from the bus stop to their house (10-15 mins), which may be difficult if lugging a lot of luggage.
Place is cute, basic, nice and clean. Yasmin was kind to let me in earlier than my check in time to drop off my luggage and freshen up. Came back later in the evening, felt safe on my walk back, and had a restful sleep. Made myself a cup of tea in the morning, then Freddie took me to the airport (for a small fee). Overall wonderful stay, thank you!