This is a curious and very funky place. I would definitely visit again (and stay longer than the two days my children and I did!) to explore Topanga's trails and canyon, and the quirky shops and restaurants it has to offer. As it was, we used it as a base for touristic adventures on this side of L.A. and were grateful to escape to its natural beauty and quiet at the end of the day.
Every abode in David's 'village' is unique and we loved our mermaid suite with its two levels, own bathroom, and kitchenette.
If you value originality and creativity miles above perfection, you will feel stimulated and happy on this hill - in fact in all of Topanga.
Taps (faucets) might move in ways they probably should not, shops don't open at times stated on their doors, but we enjoyed this Southern European type of charm - it added to the holiday feel.
The only thing that was missing (but others might find this a plus) was that we never met David and his family. Every practical wish I had I communicated via the airbnb app and they were swiftly fulfilled, but a large part of the charm of staying in a B&B for me is the interaction with hosts. In this case especially I was eager to know how this commune started, how it was designed and built, and how it might develop further. Of course there were other kind and interesting guests to talk to, and I doubt this is ever a lonely place, but I return to the U.K. none the wiser with regard to the mermaid's origins. That said, if ever I return to L.A., this is where I would stay!