You probably won't find a better value. We found this as a convenient base to access Kona and Kohala coasts as well as Mauna Kea tour. The grounds are peaceful and the owners are on site. The vibe is a bit like staying in your grandma's spare room. Max (Dennis) was a very pleasant and welcoming person to meet while we were walking around the property. Della is his wife who seems to handle the bookings and was available by phone or airbnb meassage.
These pros and cons may help you know if this is the right place for you.
Pros: Great price. Great kitchen including good fridge and stove/oven. Good supply of utensils, pots, etc. Location is about 15 mins to Kona town and also convenient to Kohala and Mauna Kea. Unit is very clean and well-equipped. We were there in the hottest time of year and it's still comfortable inside using the fans.
Cons: Creaky spring bed was not comfortable. Noise really transfers from other units: ie, people walking upstairs, checking in, checking out at any hour; next door the microwave is mounted on the shared wall so when they open/close it's very loud in the unit. If you're a heavy sleeper these may not be an issue for you.
As for location, since Kona is spread out, it's hard to be close to everything. You get a peaceful neighborhood but you trade for a 15 minute drive to a restaurant or major stores. Very close to the airport and some good beaches. About 45 min to Captain Cook.
Tip: Matsuyama Market is 5 mins away and has great lunch plates and Ahi bombs!
Tip: your check-in information is emailed from a separate address and not contained in your AirBnB booking. So make sure you keep this information with you especially if you are checking in late. In AirBnB it says "contact host for check-in," but this is incorrect.
Tip: Bring your own bath supplies; there are none provided.
Tip: I am not sure how you know if you are getting a upstairs or downstairs unit, or a unit in a one-story building. So you might want to check with the host if there is a particular one you are looking for.