Thanks a lot for a very nice stay in your flat. Costa is a very responsible host. We really appreciate that the pictures of his flat are telling the truth. You actually get what you see. And more important the detailed description is completely correct.
Neighborhood is fine and doing some small shopping in the local shops are a positive experience. It brought in another perspective to our holiday to stay in this flat and get a tiny picture of the daily living in London.
Some good advice for others:
There is a taxi booking close to Oval station and it is possible to get a taxi drive from the flat to Gatwick Airport to a fair price.
I found a very delicate Italian bakery and coffee shop on a small path on Brixton road with tasteful bread on the shelves. I can recommend the nice flat in a simple living style clean and warm and Costa as a host.