I didn't meet Olivier in person but he was very helpful and communicative. The location is decent and the free parking was very helpful. If you are going anywhere in Santa Monica I recommend using Uber or Lyft.
We had trouble sleeping because of street light coming through the window-- there was only a sheer cover that didn't block any light. There are two other rentals on the same floor, so you may hear noise from the other rooms (one had a baby so I suspect it is usually quieter.) It was also noisy due to a neighbor's party but that is inevitable in a city.
I didn't find the bed or pillows to be very comfortable but that is more a matter of personal preference. Despite the small issues, overall I would recommend the unit. The price is decent, it's a short hop to the beach, and he's done a great job with a small space.