My wife and I lived in David and Lucy's house for almost twenty days. Lucy gave us the keys and instructions and created a very friendly environment for us. The room was spacious, and Lucy provided us with another storage area for our luggage.
The room was beautiful, exactly like the photos. I should tell you that there are three rooms in the house which Lucy & David live in, one of them and two of them are for Airbnb rent. The bathroom and kitchen were always clean, and I believe we used the kitchen even more than Lucy! And I should tell you we were working from the room remotely for a few days, but even in those days, we didn't see much of David and Lucy.
In terms of transportation, you can have access to Hornsey train station in 15 mins and Turnpike lane underground station in 20 mins, and the bus station with 5 mins walking. You can go to central London, 40-45 mins from Lucy's house.
And to sum up, we had a great experience. Lucy was very helpful to us-- thanks Lucy