Our stay at Kelly's place was great. We loved the outdoor space - Our guess is there is more sq. footage in the outdoor covered space, than indoors! Indoors was a little tight for us, especially because we were visiting for a longer duration and had a couple of large bags and a couple smaller ones. But the layout of the house didn't make it claustrophobic, and the immense outdoor space was where we spent most of the time when we were home. The kitchen has all the appliances and utensils, but no dishwasher, so we didn't cook to avoid washing everything by hand.
Also, if you are a light sleeper, beware because there are a lot of Coqui frogs around, so it gets loud at night. It didn't bother us, in fact we enjoyed it, but some may not like it. So just listen to how they sound on Youtube and make sure you can sleep with those sounds all night.
The place is in an otherwise quiet neighborhood, but it a bit far from everything. Just to get to the nearest grocery store in Keaau is a 15-minute drive one way, and Hilo (where all restaurants and shops are) is about 25-minute drive, so plan accordingly.
This has nothing to do with Kelly's place, but something anybody visiting needs to be aware of -- The thing that was most annoying on this side of the island is that car break-ins are more common and we had to be extremely careful to avoid those. We didn't leave anything in the car, NOTHING! And didn't leave the car unattended wherewe saw broken glass on the ground. We met a couple of groups who had their cars broken into. And if you are driving a Mustang, Camaro or a Wrangler, you are shouting tourist, so be extremely careful!