I never would have imagined liking this. I enjoy tart flavors, but generally not dark berry flavors. Going by smell of the bottle alone, I wanted to throw it away. However, this actually has a really well put together tart blackberry taste to it. It's not bitter or sour just nicely tart. I assume there is jackfruit in there too, but I have no idea what that tastes like. Together though, this reminds me of Blackberry Berry Starburst. It's actually really good, smooth, and flavorful. Pleasantly surprised as this was something I never would have ordered willingly. On my second tank, I find myself enjoying it more and more.