My first visit to Kalani and definitely not my last. I really needed a warm, beautiful, nurturing environment and Kalani exceeded my expectations.
The rooms: I stayed in Tree House room 12--it was great. Clean, and spacious. Screens on 2 sides overlooking a field. Rooms vary in size, but overall I would warn you that the walls are thin, and noise will travel. Overall it wasn't a big problem. The coqui (spelling?) frogs are loud, but I really liked the noise and you can use earplugs to help dampen down the sound. My room had a nice bathroom and I didn't consider it as "rustic" as some.
The grounds: Gorgeous. I highly recommend a Monday walk about with Barcus the horticulturalist in charge--we spent about 3&1/2 hrs walking the property and I could've spent longer. Learned about Kalani's aquaculture project as well.
The food: REALLY GOOD. Fresh, delicious, vegetarian options, great granola, great salad bar, great desserts in the evening. I never felt deprived.
Activities: I didn't come with a group, so I did the "Kalani experience" package. I got to choose from at least 2 yoga/dance classes a day. I took classes in Hawaiian language, hula, and even an improv class. Ecstatic dance was a unique experience and people from the community will often come to participate in Kalani activities. I would definitely recommend a watsu treatment with Sara Joy. There is a wonderful geothermally heated pool and tide pools for snorkeling within a short driving distance. I definitely would recommend renting a car to give you more options. Yes, pool is clothing optional, but I kept my suit on and felt quite comfortable around the naked folks.
People: I think this is truly the best part of the Kalani experience. Staff and guests are great folks, I found people to be overall warm and friendly. If you are a bit shy, I think people are friendly enough to draw you out or leave you in peace. Seating on the dining lanai is sort of "assigned" if you're with a group, but I found no trouble socializing with other guests/staff at mealtimes (and I would infiltrate a neighboring class' table at times). I met some special people with whom I'll definitely be keeping in touch.