The Maid's Quarters is a charming, tastefully decorated home tucked away behind the "front house" on a rugged little road in Volcano Village. It is just a mile or two from the entrance to Volcanoes National Park. Google Maps weirdly led me to the road behind the house, which was completely useless because the back is heavily forested and the house is inaccessible from there. No matter, because the house is just around the corner from there.
The home really is charming and well decorated. I don't think there's any A/C but you don't need it at this altitude. The nights were quite chilly when we visited in May 2019. There is a full kitchen with a nice gas stove, a large master bedroom with wonderfully comfy pillows, a full bath, a living room, a sitting room, and a lanai. We were given access to the back yard and told it was our private domain for the duration of our stay. We really enjoyed the hot tub each night we were there; it helped to soothe our aches from all the hiking we did during the day.
We didn't explore much of the town of Volcano, but I gather there is not much to explore there. There are a few places to eat, but we only ate at the nearby lodge, the Volcano house in the park, and at the farmer's market on Sunday morning.
I knew I had picked the right place as I lay in the dark our first night there and I heard my girlfriend's voice in my ear, "Honey, thank you so much for picking out this beautiful, beautiful house for us to stay in!" She was so disappointed when we moved on to our next stay elsewhere on the island. I was, too.