This is an excellent product, and well priced if you consider the alternative pricing to Yerba Mate pre-canned drinks on the market or other energy drinks. The energy is clean and sustained, it's portable, and you can make as potent as you like with varying degrees of water added. I throw two of these in a large water bottle and have hours of sustained energy while I'm also hydrating. And the product is not diluted like some yerba canned drinks, you get a real lift. While this product may not be a mate purist's choice over brewed leaf, this removes the barrier of needing to brew. Throw it in water and you're good to go. Taste is pretty good too.