Although Adam was not there, everything was very fine from the initial contact up until the departure. There were listings of him with the 'must sees' and 'must try' and very elaborate emails before arriving.
The place was very clean and neat. Modern, spacious (for London centre standards) and easy to live in for a weekend with 4 adults.
We were welcomed by his son and the keys can be dropped in the mailbox.

This was my first Airbnb experience. If everyone is up to this standard hotels can stop doing business.