I stayed at Elliot & Nicola's place for 2 nights, as I had a job interview in a nearby area in London during that time.
They were 6/5 star hosts. Due to flight delays and a crazy schedule for my short time in London, they were flexible with check in and check out times. They were very easy to communicate with through AirBNB inbox.
The studio itself is private, very comfortable, extremely clean, and well-maintained. They have a manual detailing everything about the studio and its surrounding areas.
If this is your very first time to London, just know that this studio is not central and out in Ickenham - I didn't have time to figure out the bus schedule but the tube station is only a 15 minute walk away. Ickenham is on the Piccadilly and Metropolitan tube lines, which are only a 30-40 minute tube ride from the touristy areas.
Therefore, this studio provides massive value and essentially you're trading proximity for value if you don't mind adding the travel time.