I hate to completely disagree, but I do. We stayed in the treehouses right when they opened, June 2009, and I hated the location. It was such a hassle to take 2 buses, minimum, everywhere. Plus, they are located directly in the marshlands, so the mosquitoes and other bugs are Terrible!
For 2 adults and a teenager, the 3rd BR would be completely wasted, plus there isn’t a lot of extra space. We had 4 adults and 5 kids in ours, so every bit of sleeping space was taken.
Had it been just our family, and had we spent more time just at the resort to enjoy the quiet of the location, my opinion might be different, but as it is, I will not stay in the treehouses again by choice.