The only reason David and the Cabana received 5 stars is because 6 stars was not available. David's place stands head and shoulders above the rest. His attention to detail is unparalleled and your stay is a memorable one.
All other AIRBNB providers in the bay area should book a stay at David's place to benchmark the top in the industry and hopefully gain some pointers.
I am already looking months ahead to find an opening to stay there again.
Mark