Ray's place is about a 2 minute walk from the Leyton Underground station. There's supermarkets and restaurants nearby. If you cook a lot yourself, please be aware that there are two burners on the stove so, it might take a little longer.
Overall, it's a very good location and I'd recommend it. Ray, was a generous and gracious host. He fixed some issues that I was having with the shower himself, since no plumbers were available during the holidays!