Pros
Privacy was nice as we didn't see our hosts for our 3-day stay or heard any other people/machines while we were there. Also nice the reserved parking spot in front of their garage is closest to the private entrance. Note there are about 20 steps up to the private entrance. Plenty of extra sheets, well-stocked kitchen with various pots with lids and toaster. Loved using the large washer and dryer although the electrical panel could be labeled better as my partner didn't realize which breaker was for the dryer to turn it on. Note that it is the 240V 2-pole breaker (combined breaker on top-left). Our hosts were very responsive to messages and fine with us using it whenever and didn't use it while we stayed there (to our knowledge). The laundry machines are kind of loud even with the door shut and are adjacent to the bedroom so you probably won't want to plan on washing/drying before bed. There is a small supermarket in the back of the 76 gas station in Naalehu although most things are quite pricey. You will want to stock up before you arrive if you plan on cooking. There are a few good places to grab a quick bite in Naalehu, though.
Notes:
Driveway is steep and dirt side road had several potholes but our rented Ford Mustang had no issues.
Walls separating rooms don't go all the way to the ceiling.
Could slightly hear hosts through shared wall (only) one morning about 8am or so. But not loud enough to be woken or anything.