Tangent: I swear by orange juice in coffee instead of creamer. It deals with the bitter coffee taste by just making it Very Taste. It doesn't taste good, quite the opposite. (My fiancée accidentally tasted my coffee once and immediately puked.) But it certainly does taste
I went to a restaurant in a tropical beach town, and one of the cafes did espresso shots in a fruit juice that is a bit like a bitter orange and it was meh, I would try orange juice in my coffee at home though. I think the problem was there was more juice than coffee flavor and the bad ratio didn't taste great.