This was my first experience of staying at a shared Airbnb accommodation. The location worked well for us (we were going to the Chelsea Flower show) and is in easy reach by bus of central London. The room is small but fine for our one night stay and there is access to a small kitchen to make drinks etc. En suite bathroom was cosy but perfectly adequate. The room is warm so you need to keep the windows open as others have said and it's a surprisingly noisy road.
Ben was very quick to respond to questions and the restaurant nearby which he recommended (Al Phoenic) was excellent. We arrived quite late at night and were a bit worried about finding the keys etc but once we worked out that there were two boxes with number 4 on and we were trying to access the wrong one we were fine!
The only problem we had was that the tenant in the room next door started to shout extremely loudly/aggressively and slam doors/walls at midnight. Not the host's fault at all but I suppose a risk of shared accommodation where, as in this case, all the rooms in the flat are let separately and the host is not resident. I think we were just unlucky and would still recommend the accommodation, especially for a short stay.