I grabbed this while out shopping recently:
Brand: Zevia Black Cherry.
Origin: Culver City, California.
Purchase Place: Whole Foods, St. Paul, MN.
Sweetener: Erythritol and Stevia.
Review: First things first: I had to Google what "Erythritol" was. It turns out it's a calorie-free sugar alcohol used as a sweetener. Here was an interesting note found on Wikipedia: "When compared with other sugar alcohols, it is also much more difficult for intestinal bacteria to digest, so it is less likely to cause gas or bloating than other polyols, such as maltitol, sorbitol, or lactitol."
Anyway, on to the review. This was a clear "soda," and it tasted like a flavored carbonated water. I think I just assumed "black cherry COLA," but it was just like a black cherry water. The sweetness was a little sharp, but the black cherry taste was pretty good. Nothing special.
Score: 5.5 out of 10.