Konrad & Robert's place is amazing! It looks great in the pictures, but it's even nicer in reality. The house is fantastic - really spacious, superbly appointed, incredibly clean and outstandingly stylish; you couldn't hope for a better Airbnb experience.
Robert's communication prior to check in was great and his welcome was helpful and friendly - their place is next door, but the house is extremely private.
The location was perfect for us - the east side of the island (Hilo) is much quieter and more rural than the touristy west side (Kona). Pahoa is 10 minutes drive away and is a cool little town with a few nice restaurants and small shops, Hilo is close enough if you need more serious supplies, but don't expect 'shopping' - this isn't that kind of party...
We spent 4 days on the east side exploring Hilo and the Volcanoes National Park and 3 days on the west side sitting on the beach, snorkelling and visiting the Kona Brewery (the beaches on the west side are extremely pleasant). It's a couple of hours drive across the island, but even that journey's quite nice (the road goes between the 2 volcanoes), provided it isn't too foggy.
The house itself is nestled amongst tropical plants and trees with a great view of the ocean - the frogs and wildlife are noisy at night, but it didn't disturb us; actually, we found it quite soothing.
Everything about the house itself was basically ideal - provided you like the idea of a really stylish, really nicely appointed house that's basically in a tropical paradise, you'll like this. Highly recommended.