Great stay in David's apartment.
It was exactly as described and comfortable for 4 adults. Location was great - overlooking The Thames from the balcony and only 5 minutes walk from Kings Road. We were in London for a theatre visit in The West End and the tube connections were simple - Sloane Square station was just over 20 minutes walk, but we decided to go from Gloucester Road which was about 15 minutes walk from the apartment.
David was really good in the lead up to our trip (providing details of how to get to the apartment and key access) and checked in with us several times while we were there to ensure that everything was OK.