Rob and Bob's place is just as described. It is a very well equipped, comfortable and full of tender loving care. It is situated in a quite residential area only a couple of minutes walk down to the coast and a small beach is only about 10-15 minutes away. This definitely a place for peace and quite in a very natural area of the Big Island. Rob an Bob are great hosts, there to support you but they leave you to your vacation.
You are a minimum of 30 minutes to the nearest town, Pahoa and eating out options are limited before there. That said you have all the facilities you need in the small but comprehensively equipped kitchen to create great meals on your own and enjoy it on on the fully screen lanai.
If you want to catch the latest from Kilauea then you are only about 10 minutes drive from the area where you can start to hike or take a bicycle to the viewing area. We took the bikes from one of the vendors and took advantage of a free shuttle one way. I would recommend this as the heat saps the energy from you.
All in all, if you are looking for a quiet time in an unspoiled part of the Big Island and looking for a good degree of comfort and great hosts, you could not do better.