I go to LA frequently, and mostly stay at airbnbs. Up until now they have all been detached, remodeled garages. And while this is a room in a house, it is very much a remodeled garage experience - instead of walking down someone's driveway to the garage, here you walk down a driveway and open a door into the house. The room is completely private - there is not even a locked door giving the house access to the room - it is completly private. There are two potential negatives, but neither of these affected me in any way. First, there is no stove or kitchen sink - coffee (and tea) makers, microwave, and small fridge are all that is there. But if you are not planning on cooking your own food, this does not matter at all.
Also the back yard is not set up for entertaining, and the house is near the freeway (you cannot see the freeway but it is nearby) and you can hear the road noise in the back yard. (You cannot hear any noise at all inside the airbnb so inside is very quiet). I don't go to LA in order to hang out at an airbnb - I get up and go, and come back at night - so that also was not an issue for me.
The room was clean, had all the usual amenities, etc.
If you are not planning on cooking your meals or hanging out at your airbnb, book this place.