I didn't stay at Banana Shout but I did visit the grounds on my last trip.

I had just finished reading the book, so I was really curious.

One day I walked from Catcha falling star over to Banana shout to check it out.
The groundskeeper was so friendly, he gave me a tour of the place and showed me the little cave cove area.. It's very quaint there and really colorful. He also let me peek inside one of the rooms. I loved the furniture, it was all kinda funky in a cool way. The room was very spacious. (The Cabin right on the water) Nice hammock out front to chill on while taking in the view.
but I didn't see AC, looked like just an overhead fan.

I took pictures, but I'm not on my personal computer right now to post them.

I also met the current owners. Two really nice guys. (I think they're the owners - someone can correct me if I'm wrong) If I remember right he said that there is a minimum of a three day stay.

I would definitely stay there.