Overall a great stay. There were several annoyances that made it hard to give a full 5 stars. We stayed in a tent, which was a tiring 8 minute walk up a steep hill. This made us reluctant to go back to our room for anything other than a shower, or to go to sleep. The tent itself was decent, but the beds were full size I believe, and there were a few scary critters inside. It was also hot at night, but not bad enough to detract from our sleep. Much of this wasn't a surprise though, since it is the jungle, and much of this has been said by other reviewers.
There are many positives when it comes to this place. The service was excellent, and the staff was kind-hearted. The food was always fresh and delicious. The pool area was well maintained, and the views, from both the restaurant and the tent, were spectacular. And our tour of Corcovado, arranged by Luna Lodge, was excellent.
So if you're feeling adventurous, and want a nice place to stay, I recommend the Luna Lodge!