Lydia is a great Host and the flat is perfect for visiting the city. The train station nearby (2min) "Farrington" is also connected with Gatwick Airport and provides trains without having to change (approx 40min).
As soon as I booked the flat I got an email from Lydia with all the details necessary to reach the flat without any problems. Furthermore she added some great tipps for local places. The café opposite the flat offers a small breakfast (try the lemon cake!).
Highly recommended, for a future visit to London, I would return to this flat.