Taste is probably the weakest part of this drink. It's a shame too, because the rest of the components are there. That's not to say the flavor is bad, just disappointing. If you've read my reviews or had a couple different zero sugar Monsters you know that they all have a very formulaic base flavor with minor accents respective to each flavor. Ultra Black follows the formula, however, the accents underwhelm. According to Monster, "Black" is a reference to the black cherries grown outside of Chicago. Despite the nice backstory, I was unable to detect any cherry flavoring. The flavor as a whole doesn't have any distinct features and I find that to be the primary issue. It's inoffensive but slightly bland.