Rachel was a great host - extremely fast to reply to any messages and there to help and give advice (but doesn't come 'round unless needed). She and her husband are both locals born and raised.
The location was good for us. It's a 30 min walk to the beach but only a 10 min cycle (she has bikes to rent for $10/day) or a $3 uber. She gave us a permit to park the car which was essential. The street is super quiet and the bed is comfy - you will sleep well.
The apartment is a tad small, but this is true of everywhere in Santa Monica in this price range - Rachel's is less expensive than most.
The kitchenette is small but had everything we needed - a large fridge, microwave, sink, and 2-hob electric stove with a kettle.
The bathroom is situated between the kitchen and bedroom and has quite a thin door, so best for couples or close friends.
The best parts for me were the 'study' just off the bedroom (which meant we had plenty of room for our suitcases) and the patio area to have breakfast in the sunshine.
I recommend and would definitely book again if in LA.