I really liked the proximity to Kailua Village, the easy parking, and the great shower (a must if you're spending time in the ocean!). I also liked the outdoor patio. There were a few maintenance issues that need to be taken care of, which I think would make their place a 4-star Airbnb. The replies to my inquiries were a little slow, which is fine of you want your hosts to leave you alone, but a little challenging if you have issues like lights not working or things breaking.
Overall, I would recommend Katie/Hank's place.