The place
The location of the stay is very good. It is close to food place, gas station, and the black sand beach which we wanted to visit. The unit is neat and clean. For the price, it is the lowest we could find in that area. They provided an instruction for the self check-in before we arrived and it was very simple (moreover, the host is always on-site and we met one of them when we arrived, so I guess if we had a problem, it should not be a big deal).
The host
We met on of the host when we arrived, and she was very thoughtful. She asked if we already had dinner and when we said no. She told us to hurry to get food from the nearby food place because it was going to close in 15 minutes (otherwise, we would not have a proper dinner). As aforementioned, the host is on the site, and if you have a problem with your stay, you should be able to contact them. Our unit ran out of soap, so I messaged the host, then she brought more to our unit in 10 minutes.
Overall, we were very satisfied with the stay.