The location is nice, and easy to get to once you find it the first time. I suggest trying to get there during daytime the first day. Check in was easy. There is plenty of room as described, and the screen-in lanai is great. We spent a lot of time out there. It's easy to get to Kailua-Kona, but the drive takes about a half hour.
It has most amenities you'd want in terms of the kitchen. Laundry is on-site, but is downstairs under the house. We had some cleanliness issues with the sheets and the bathtub. It was manageable, but a little disappointing. And this house is a little more rustic than the pictures show, so be ready for that. It is rural Hawaii though, so that isn't too out of the ordinary. There is very little privacy between this unit and the adjoining unit next door in the same house.
Overall, it was a good stay and served our needs. Just some details made it a little less comfortable than we were hoping.