This place is awesome! My mom and I stayed for 4 nights here, and we loved the space it provided for both of us to relax and function without being at home or in a hotel. The location is perfect, very close to beaches, local shopping and food. It was beautiful, functional, and sparkling clean. You could tell there was lot of effort put into making their guests comfortable. There is a coffee maker, a portable burner to cook with, dishes, light condiments, and they even allow you access to their grill. I also found that there was a hair dryer and an array of supplies in the bathroom such as aloe vera and sun screen - everything you might need if you forgot to pack it.
The place is located towards the back of their property on the lower level, and though it is attached it feels almost 100% separate from the house. We tried our best not bother them, and unless you need anything, the host won't bug you either. They even provide a parking space for you in their driveway that is clearly marked. My mom and I were blown away by the hospitality.
Also - two beds! This came in handy. If you're traveling as a couple with a child or children, or there are 2-3 people in your party this is a good affordable choice. The bed in the bedroom is heaven. It is one of the most comfortable mattresses I have ever slept on, and that is rare for an airbnb. I also slept on the pull out sofa bed - very convenient. If I ever travel to the Big Island with a small party again I'll be sure to try to book with them.