We thoroughly enjoyed our stay in Volcano. The house had everything we were looking for, and we felt quite comfortable there. The location is great -- quiet, but close to 'all the action' of Volcano and the National Park. I absolutely love that part of the island, and the home fit very well into the Volcano vibe.
We felt quite safe and comfortable in the home. Greg was an excellent host. We never met, but he was very responsive, and it was very clear how to enter the house, where everything was located, etc. We did have a bit of trouble finding the place, but that could have been an oversight on my part.
The one thing that affected the quality of our stay was the showers. I imagine it is a result of the type of water heater that is installed, but it was impossible to take a bath or shower at a reasonable temperature. Perhaps there is some trick of which we weren't aware, but the shower (and other water in the house) would alternate between bitter cold and scolding hot. A good shower is quite important for many people, and this put a bit of a damper on our stay, and also posed some safety issues (e.g., water that is far to hot for children). There might be some trick to getting the temperature right, but we were not aware of one, so this made things a bit uncomfortable from that standpoint.
Shower complications aside, the house was very comfortable and everything was in order as we expected. Many thanks to Greg for a lovely place to stay.