Particularly as compared with other coffees, what descriptors would you use to describe the taste of Kona coffee? Reason I ask is because I tried a cup at a restaurant, and the word I would use to describe the cup I got is SOUR. I have a feeling this is not what Kona is supposed to taste like, and that I just got a bad cup at a bad restaurant. Kona isn't supposed to taste sour, is it? Disappointing, to say the least, as I ordered it specifically learn what Kona was supposed to taste like.