Road is pretty hard on regular cars
We enjoyed our stay, but going down the road to the sea was tough. you definitely hit bottom more than once and felt the car scraping along some rocks. This was a Mazda hatchback fully loaded with three people and lots of luggage. People traveling lighter might have an easier time.
For us on our two night visit it meant that once we arrived we didn't want to get back in our car and drive up the road to do day trips or sightseeing or buy more food or water. We did pretty well with the food and water we had on hand. But I recommend stopping to get all the food and water you need before you go down that road the first time in case like us you don't feel comfortable driving up and down at multiple times. It was a very restful stay, with a unique landscape, so much sky! been watching the sunset into the ocean from high up was great.
The place had a peaceful feeling. And I love the small coffee table book called What is this thing called Aloha. Aside from a mile but of anxiety about feeling stuck, we had a great time. We probably could have asked for help getting rides or food, but we were able to managed on our own.
On our drive up the road, we took turns from walking around so there was a little less weight in the car, and I think we scrape less. The cabins were lovely, as was the bathroom. If covid is still happening and you have more people than fit in one cabin contact Debbie, she can probably open up another cabin if you need more space. We also saw a neighbor with a pickaxe chiseling out some of the bigger bumps, so maybe it will be better by the time you get there:).