This place was in a great location! We didn't have a car during our stay here and could walk pretty much anywhere we wanted. It was clean and comfortable and the shower was nice. There was a microwave and a coffeemaker but no other way to cook. The host does use the washer and dryer which is in the guesthouse (which she states in the description). Just plan to coordinate with her so she can use it when it works for you of you.
Another thing to note, which is probably true for anywhere in Hilo, is that it isn't the quietest place- lots of coqui frogs at night and roosters at 4AM. There were ear plugs provided and I did use them when the roosters started up.