I lived the eighties, but in that time in Mexico there was only horrible fake juices -artificial grapefuit, in a purple liquid- with vodka. So I didn't know this. Is very good, I have to do it with Cassis, since here Giffard is no longer available. Is sweet but not so sweet, my better half said: is tamarind? and certainly is more sweet sour. I crushed some blackberries in it. Yummy