The treehouse was a fantastic and unique experience, but it's definitely not for everyone. If you're used to resort living, this is not that - and I think that's part of what makes it so great.
I loved how connected the space felt to the outside - but that means there IS wildlife, like geckos (everywhere!) and bugs (not really an issue inside), and at least while we were there a very affectionate cat. And while it can feel strange taking a shower our using the toilet outside, I enjoyed the "in tune" vibe of the place. Especially because of the warm welcome and open communication, the treehouse immediately felt like a retreat with mother nature as the hostess. It was peaceful and perfect.
The kitchen is impressively furnished and works great. For those of us who like to skimp on eating out to save a few bucks and travel more (and with the food prices in Hawai'i I think it's especially warranted), I thought the place was well-stocked, and the farm-sourced chocolate was friggen delicious (ask for the tour!). But also definitely heed the hosts' warning on critters - you're in a jungle, for better and worse, so respect that!
With that caveat, it was absolutely what we were looking for, a nice refuge to relax after a day of hiking with a beer on the porch, or a glass of wine listening to the Coqui frogs, or in the morning with a nice cup of coffee taking in the rising sun. Those simple pleasures are all magnified in this homey little hideaway - highly recommend if you're feeling more adventurous!