Really can't understate how special this place is - staying in Donna's cottage was the highlight of our trip to Hawai'i. The cottage itself is very homely, mornings were long and lazy often spent soaking up the sunshine and watching the birds and geckoes fretting about. The rainforest was stunningly beautiful, and the foliage offers plenty of privacy. Donna was a very warm host - understanding about a delayed flight and late arrival, and very friendly to chat with while also leaving us plenty of space once we'd settled in. The only two points to be aware of: frogs are a bit noisy at night (not an issue for me but my travel buddy needed earplugs), and the dirt road in is very rough and slow going. A sedan might struggle, and it'll take you longer than you might expect to reach the main roads and tour the area (about 30 mins to Hilo by my recollection).