This is a gorgeous property. Unassuming on the outside, it is top quality from stem to stern on the inside: great sheetrock work with rounded outside corners; faux wood vinyl tiling throughout; top-quality, double-glazed windows (a bit of a rarity in Hawaii); zero threshold walk-in shower; thoughtfully chosen furniture.
Spotless is too tame a word for the condition of the unit.
Every amenity one might imagine is tucked away somewhere in the unit. (If you forgot it, Marvelee has probably provided it. I was still discovering more convenience items two weeks into my stay.) There is no stove, but there is an induction AND a conventional cooktop, as well as a toaster oven and a regular toaster. The coffee maker is a Keurig. The cable TV has a good selection of channels and the internet access allows for streaming with only occasional glitches. I frequently streamed recorded material form my Dish Hopper in Michigan.
The bed is firm but quite comfortable (exactly my preference). The living room couch opens in an unusual way to produce a quite-firm full bed with no internal metal frame to poke at the occupant. I don't think two adults could share it comfortably, but two children might.
Marvalee and her daughter are excellent hosts and go out of their way to provide any required service. (I left my laptop at the TSA checkpoint in Honolulu. It was shipped to Marvelee, who had it delivered to me at the cottage.)
This property is less than two miles from the major shopping centers of Hilo but feels completely out in the country. It is convenient to everything on the East side of the island, especially Hawaii Volcanoes National Park. It is situated on a small working farm surrounded by others, so expect rural sounds (chickens, goats, geese, ducks, dogs and one rooster with an odd internal time clock). Coqui sounds were quite muted. Nights are crisp in March, which I personally love. Closing the excellent windows cuts the sound and conserves the heat of the day, if necessary.
I am a regular visitor to the island. I have rented elsewhere on multiple occasions and actually own another property on the Kona side. In my opinion, Marvelee's Mac Nut Cottage is one of the greatest bargains on the island. I recommend it without reservation and expect to return when I need a place to stay on the East side.