The apartment is very spacious, clean and has all the utilities you want. It is very close to LAX (about 8 min drive from the car rental place) and yet far enough so that there is no noise pollution from the airport.
The check in instructions were very detailed and everything happens through email/text messages. You get all the door codes on time, Jason being extremely attentive making sure you have everything you need for a smooth check in. The parking is secure underground.
You definitely need a car to move around if you want to visit the LA area but that's valid no matter where you stay in LA - this is not a walkable city by any means.
I wholeheartedly recommend Jason's place!