I had a lovely stay, peaceful and very quiet. Mary is a fine host and even took me to a neighborhood party, where I met so many interesting people.
As others have noted, it is indeed best to bring your own groceries, though the kitchen is well-stocked with staples, spices, and condiments. Mary provided fresh eggs from her own hens, and mangos from her trees. Her farm seems utterly self-sufficient - if you want to sample true off-grid Hawaiian living, this is the place to stay.