I didn't try the Kava, but the Kombucha and Kratom Tea are both excellent. The Blueberry Kombucha tastes like a handful of ripe blueberries, with the right level of tartness, and not overly carbonated. The Kratom Tea had a hint of raspberry and a nice kick.
Oh, I almost forgot... there's a Kratom soda too, which is excellent. It has dark notes of cola, vanilla and clove. It made my tongue go numb. It also woke me up, like caffeine, but without the jitters.  Quite interesting…