Off the bat, the best thing about this spot is the location. You'll be within walking distance of some of the best parts of Hilo, which is great!
I would not call this location "cozy," it is small and cramped, like 8' x 10'. It is a studio, not a one bedroom. The bed has about 3' of clearance on the top - you might hit your head like I did. The room is a basement, and the door to the hallway is a sliding glass door. It smelled a little dank when we arrived, but the in-unit AC fixed that in a few hours.
I would say that this property is good for a solo traveler looking only for a place to sleep. It was very cramped for a couple, and we did everything we could to avoid spending any time at the property outside of sleeping hours. One night was enough.
Also, worth noting there is no private parking, and the washer/dryer was nowhere to be found.