For relatively inexpensive sleeping, this close to Kona, you unlikely to find much that compares. That said, it really is just a place to sleep. The unit should really be set up to accommodate 2 ppl, not 4.
Just be aware that the layout is a bit odd and it has been set up to maximize the amount of people it can sleep. This is why you find a bunk bed in the kitchen :) There is no place to eat inside at a table or lounge on a sofa. It is like being in a hotel room with a kitchenette.
We had a good stay, but we really didn't spend much time there. It is quiet (except the frogs), clean etc. The main queen bed could do with replacing as it is springy and soft, but the bunk beds are firm and comfy.
Basically, it serves a good purpose to sleep and put you in a good, quiet location that is very close to Kona and surrounding. If the weather was bad, it would not be great. Just nowhere to do much of anything when inside.
The outdoor space has a great view but only a picnic table :(