The is the best location on the island! You're close to Volcano Nat'l Park and not far from Hilo and the about an hour away from Kona and an a bit more to go around the southern tip. If you're looking for a good central place to go all over the Island this is your spot. We went everywhere while we were visiting. Make sure you are okay driving if you want to see more of the islands rather than staying on one side. We did a lot of driving but it never felt like had to sacrifice anything because of it.
The house is wonderful and clean and very well maintained. It was cool and well insulated so we didn't feel too hot or cold when at the house.
The road driving in is bumpy and has potholes, as the host mentions you can navigate them easily if you go slow but I personally think a larger size vehicle may be necessary especially if you will have rainy weather while you are visiting, it didn't rain that much or bad while we were here but if it had I would have worried about the Potholes if we didn't rent the Jeep, it is not so bad that I think it requires it but just consider your driving preferences and if you have ever driven on dirt/gravel roads you know what I mean if not then you may want to consider the larger size vehicle.
The bathroom was the star for me, and trust me the bathtub is lovely as it looks.
We didnt get to walk out on the property too much while we were here but did get to enjoy the scenery as the house is full of large windows and natural light. The kitchen was well equipped but we were too on the go to use it to its potential, but everything you need is there for good cooking!
Dennis was a great host, very quick to respond and assist if we needed. We will be coming back to stay here in the future.