Paul is a fine host. He has the airbnb thing down to a science with long list of common sense house rules and helpful hints on a three page handout.
The kitchen facilities are great for preparing your own meals.
The bed is comfortable and the room is reasonably quiet.
Mar Vista is centrally located with easy access to Santa Monica, Venice Beach, Marina Del Rey, Los Angeles City, the 405 and CA 90 highways. You can get from Mar Vista to a lot of L.A. locations on city streets and avoid the highway jams.
I like the easy access to the Ballona Creek bike trail that leads to the Marvin Braude bike trail that goes to all the Beach Cities from Torrance to Pacific Palisades. I rented a bike for the week and rode part of the trails every day.