Nice big house with lots of bedrooms, bathrooms, and a cute, usable kitchen for guests who like to cook! The lanai is great--huge, and partially covered (great for the frequent Hilo rains), with lots of adorable geckos running around.
On the downside, the couch and living room chairs are pretty uncomfortable. Also sadly, the treehouse needs some serious pest solution. My kiddo stayed out there for just a few hours and got bit up by something--not mosquitoes--so I would definitely deter anyone who is thinking of sleeping out there.