Konard & Robert's place is one of the best airbnb we've stayed at. Excellent location, secluded but easy access to the local beaches, Volcanoes Park, Hilo, Mauna Kea, and the rest of the Eastern side of the island. A few unassuming but excellent restaurants are nearby - Tin Shack for breakfast/brunch and Ning's Thai for dinner (BYOB).
We enjoyed the view of the ocean from the patio. The place is well appointed, high quality towels, good shower. The hosts introduced us to a few tropical fruit we have not tried or heard of before. The place accommodates two couples very comfortably. The hosts responded promptly to our questions.
Tip - try snorkeling at the Richardson Park in Hilo. Consider bringing a wet suite - the water there tends to be colder than average.