This is definitely an "off the path" kinda place. If you are looking to just be stationary most of your trip, in a remote location, this is the place! Totally recommend going to costco and/or KTA supermarket after landing in kona and before checking in so you've got all your food supplies up front. It's quite a drive out of the neighborhood and back up the highway to the nearest market. Kitchen is fully stocked with everything you need and is great.
Try to get a car with some clearance on it since the driveway into the actual parking area of the house is loose gravel and looks like some have been stuck there before with some pits in it.
House itself is comfy and has all the common toiletries you would need for your trip. The best was the outside seating on the deck in the mornings when it was cooler :)