Fantastic place! There was fresh fruit and trail mix when we arrived. The bikes were great for riding the trail along the shore (only 5 minutes away). There were two very convenient grocery stores that are a short walk away and Kapa'a was a great place to stay if you want to visit Waimea and the north shore (both about an hour's drive away). The hosts provided a great list of recommendations for restaurants and activities in the area.
Highly recommend a car for this island if you're debating it. There's hardly any public transit that we could see.