I stayed at Rob's apartment for 2 lovely weeks.
The apartment is very big, and so is the room. When this room is the only one occupied, you also get a bathroom all to yourself.
The apartment is close by to several buses (328, 13, 82, N13) and within 15 minutes walk from tube/overground/national rail stations. Getting to central London takes around 30-45 minutes.
The apartment itself has a lot of natural light, so if you're a light sleeper, make sure to have an eye cover. Very quiet neighborhood, which also feels very safe, even when walking home from the bus stop late at night.
Rob is very nice. I didn't get to see him a lot, but we had interesting chats when we did.
Do notice there's no microwave, only an oven and a stove.
All in all, I highly recommend staying with Rob. In expensive London, you get your money's worth.