My longest Airbnb experience(7 days) and probably would be the best.
Amanda and her husband Ben were awesome hosts. We arrived at 9 PM in the night and Ben was there to welcome us and showed us the room. Also left some welcome gift for us. We did run into one or two issue during and Amanda provided a speedy response.
The room looks really awesome in the morning with the Sun shines through the living room window and we made several breakfasts, the kitchen really comes with everything we needed(Says from a person lives in Asia, so everything I could hope for in London. LOL)
Bedding
We got 4 persons, so 2 stayed together in the living room sofa bed, another 2 sleep in those 2 bedrooms. I was sleeping in the bigger bedroom but to be honest I think the sofa bed was REALLY comfy.
Transportation
Kensal Rise being a Overground station(which is a kind of city train) is only 2 bus station away.
Bus station is just 2 mins walk from the house, the bus station in London really blow our mind as the stops are really near to another which is very convient in our case.
Bus #6 can takes us to the centre of London within any transfer but might be slower than tube.
The most used/near Underground station(Tube/subway) would be Queen's station. We usually walk 2 mins to Bus station and took 6 to Queen's station and then the tube can takes us to most place downtown.
FYI, we brought Oyster card and top up the 7 days travel card and used throughtout our stay including Overground/UnderGround/Buses.
Grocery
There is a Tesco express just near the Kensal Rise station and the bus stop is right in front of the store so really save us lots of shopping walk.
At least, our departure flight leaves at 10PM. Luckily for us, there isn't any guest on the next day, Amanda KINDLY allow us to stay for couple extra hours and let us did some last-hour shopping.
Really recommended.