Least friendly place we went in Hawaii. Over priced. They want to charge $15 for a tour. Under staffed. We were there at about 2 PM on a Saturday and there was a woman in the Gift shop and a guy cleaning in an adjacant room. Pretty view. Go to Buddha's Cup for a real tour and better coffee.
They have a computer set up in the gift shop and if you leave good Tripadvisor review you gget a discount. This may account door the positive reviews.
Life is too short to waste any time here