We see lots of human characters drink it (hell, I think we see more humans than Klingons drink the stuff!) so Raktajino must be relatively palatable to the non-Klingon palate. Anyone care to guess as to what it tastes like? What kind of Earth coffee would be the closest equivalent?
Klingons obviously like food that is very spicy and complicated - they would certainly think that all human food is hopelessly bland. So would their attitude towards coffee be the same? Would Raktajino be like getting four or five shots of espresso? Would the very concept of a "light" Raktajino be a contradiction in terms? (forgive me, I'm not that familiar on human coffee even; all I care about is getting a Mocha at Starbucks