My boyfriend and I stayed at Hale Ulu for two nights after being Kona-side for a few nights.
The drive to Hale Ulu was so cool - you can see steam vents from the 2018 volcano eruption, then you drive through a beautiful tree canopied area until you find the spot.
There were very thoughtful touches at the cottage, like a binder with local tips. Amalia met us shortly after arriving to make sure we were all set up. She was super friendly and helpful and we had a great stay.
It was fairly rainy while we were there but we stayed dry in the cottage while still getting to feel close to nature.
I highly recommend the spot for anyone looking to be away from the touristy areas. We used it as a home base to explore Mauna Kea and Volcanoes National Park and it was perfect.