We stayed at this apartment for 4 nights in September and thought it was really great. It was in an easy location (we did have a car) but it was a short walk to downtown Hilo and there were some restaurants about 2 minutes away - the hilo burger joint was great too.
The apartment had everything you needed and I could have easily stayed there for a longer time. The kitchen was well equipped and the bathroom had plenty of toilet paper and towels. The washer and dryer was not in the apartment though - I may have been silly to assume this, and costed $1.50 per load and $1 to dry.
Elisa was a great host and very easy to contact and helped us with things to do and let us stay later if we needed for our flight.