Great flat! We wanted to stay between Heathrow and London and this worked out perfectly. It was a short walk to the bus or train, and a short bus ride to the Underground. We allowed ourselves an hour to get to our in-London destinations for tours/walks and never missed an appointment.
The flat's kitchen and bathroom are nicely upgraded. Lots of hot water and a great shower. Despite all the planes overhead going into Heathrow, the flat is quiet. We had the windows open at night and even with the windows open there was little noise. Nice, quiet neighborhood. One feels quite safe walking around the area.
The restaurants and grocery stores are close and excellent. We did breakfast and a couple dinners in the flat. For example, after one long tour day, we picked up 2 beef stroganoff over rice dinners for 6 pounds total at the grocery.
Overall, the flat turned out perfect for our stay.