I had a great time at Sara and Marc’s place. It is as described. The property is really pretty, and they obviously put a lot of thought into it. (It is a little out of the way, so I’d recommend downloading some maps for offline use before going, as I would lose signal closer to the property.)
Sara checked up on me regularly to see if I needed anything, which was appreciated.
Staying there is definitely a more rustic experience, which is what I wanted. The bedroom structure is small - there is a bed, a couple of small lights in case you want to read when it gets dark, a porch, and not much else. The outdoor bathroom is close by, well kept, and easy to use. The lanai was nice to hang out on. The outdoor shower was nice and supplied sufficiently hot water.
The town of Pahoa is close by and has kind of a hippie vibe, which I liked.
Location-wise, the place provides a good jumping-off point to explore the natural beauty of the surrounding areas on this part of the big island.