Absolutely heavenly grounds. Really hard to get a sense in photos of just how pretty it is. I wish I had more sun when I was there since the views must be incredible. But the flowers and walkways are like something out of Eden. The manager is also really excellent and attentive.
Personally, even though it is not out at night, I would have preferred having a/c as it gets stuffy, but think most people would not mind. Also, probably best as a couple or family since it is isolated and dinner is just wherever you would like to eat, rather than a restaurant so it feels less social. However, overall, I would highly recommend Casa Prana. It is a special place.