All was great. Location: Brixton is a great location in London. Brixton market and Brixton village with great restaurants at (for London) reasonable prices, great bars, ... Also the immediate area of the flat is great. We felt safe and in an area where actual people live.
The appartment: 24 hour concierge. top floor with great view. brand new appliences in the kitchen, in fact all is new in this flat and very well maintained.
Host: John was easy to reach, responded fast, open for all enquiries. We kept mostly to ourselves, because that's what we wanted and he was thus helpful but non-intrusive.
We had a wonderful stay. I'd definitely stay here again when I come to London and the apartment is available.