The good:
Harley's place is one of the few Airbnbs in Waimea and it's a good size place. The structure is great - 3 bedroom, 2 bath would be great for a bigger party than ours (we were just 2 people). On a clear morning, the view of Mauna Kea is gorgeous. There is no heat, but there are many space heaters provided - just don't plug in two at a time near each other because the fuse will blow. Waimea is centrally located between the Kailua beaches and the Volcano. Harley provides beach equipment, umbrellas, snorkel gear and boogie boards for adults and kids.
The bad:
Communication with Harley was frustrating. He did not send us check-in details. When we asked for them as we were reaching Waimea, he blamed his wife (!) for not checking her email, then blamed AirBnB for not reminding him.
Waimea is beautiful, but cold, so it would have been appreciated if the water heater was turned on before our arrival. When I asked him where the water heater is located so I could turn it on, he replied with a thumbs-up emoji and no information as to where it's located. Luckily, Moani, the caretaker, is very available and lives close by, so she told me it was in the garage.
Although space heaters are provided, the home is very very cold in the morning and nighttime. Perhaps a functioning fireplace would have helped. It is advertised but does not work.
There is no hot water in the master bath stand up shower, the shower head is broken and there is no ledge to place your soap on. There is also a bath/shower in the master bathroom, but there is no shower rod, so we could not utilize that. We used the second bathroom for showering. The towel rod came off the wall our last day when we tried to take the towel off the rack.
Harley charges $175 cleaning fee, which could be understandable for the size of this place but he makes the guests take out their trash and recycling to the Waimea solid waste management facility, which was out of our way. The guests before us clearly had not done so, which left a rancid stench that stayed the whole time even though Moani graciously took the trash out for us when we arrived. There is no lid on the kitchen trash, which given the amount of bugs in this climate, I would imagine there would be a lid on it.