After getting a bit of distance from our experience here, I can see that it probably wasn't as awful as we remember it to be. For one thing, our stay here came at the end of our two-week stay in CR, and by this time we were both tired, my roommate was already ill, and while there I also became ill (I suspect from drinking the "free" water, which was unfortunately not free from bacteria).
The Problems: The lack of air conditioning was a definite problem for us, as the weather during our stay in late December was very hot and humid, with no breeze whatsoever. At the time we went, the beach seemed to get all the cooling breezes, while Luna is well above it in the forest. It's hard to appreciate anything when you're so damn hot you can't sleep.
I had no problem with the bathroom being open to the outside; the problem was it being open to the inside! When you are ill, the last thing you want is a lack of privacy between you and your equally ill roommate. All of these lodging descriptions tend to blur together after a while, at least they did for me, so let me stress:
***In the bungalows, there are no doors and only partial walls between the bedroom and the bathroom.***
Another annoyance was the bug infestation in our room. I know they discourage the changing of sheets during your stay for ecological reasons, but when my bed was overrun by bugs and I woke up with little dead bodies covering my sheets I could have done without the attitude from the cleaning staff when I politely asked if they'd change the sheets. And yes, I was using the (mostly useless) mosquito netting.
Lastly, we both grew very tired of the lodge "nickel and diming" us to death. Sure, they provide free water, but it's tepid and is apparently unfiltered. Meals are included in the room rate, but any drinks except tepid tap water, coffee and tea are extra. Transport to the beach required 24 hours notice. (And whoever said it was an easy hike has got to be joking. It took us an hour by jeep to get there.) Guides are extra. Taxi to and from is extra. What you get for $300 is an open air bungalow with beds and bathroom and three small meals a day. Oh, yes, did I mention the portion control? If you didn't get to meals early, the buffet table cleared out very quickly, and wasn't refilled. One evening we sat with a fellow guest who had to make a meal of that night's side dish--fried tomatoes covered with cheese--because he was late to dinner. Not really good value, in my opinion. The absolute capper was our taxi ride back to Carate at the end of our stay. We'd arranged for the taxi two days ahead and settled on a price. Then, at the last minute, Lana shows up and suddenly we have two staff members sharing the taxi we paid for. By that point, we were just praying to get the hell out of there before we got overcharged for something else.
The Positives: Location, location, location. The scenery from the main lodge deck and the bungalows is gorgeous. The Luna Lodge is one of the few places to stay in the Osa that is that close to Corcovado. If you're into yoga, the facilities are great. I believe the yoga classes are extra, but we were too sick to be interested, so I'm not sure. They have a package with a guided hike into Corcovado. It's eight hours long, and the guide who took a group of us didn't say much and didn't spot many animals, but the experience was otherwise worth it, just for the flora and fauna we spotted on our own. I'm positive it would have also seemed much less grueling if we'd been feeling well. If you love wildlife and want to get away from it all, and I do mean away, this is the place.
I know it sounds like we hated this place, but I think it's fairer to say that as gorgeous as it is, the vibe there is just not for everyone. We didn't get into how structured and rigid Luna is. Lana appears to like controlling every aspect of your stay. Everything had to be arranged days in advance or it was made to seem a huge hassle. The rest of our disappointment was probably feeling ill and cranky--if you need a bit of comfort and TLC, Luna is not the place. It's more like a health club than an eco lodge. And it's definitely not all-inclusive.
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC.