interesting... I have not heard much about Cuban Crystal Mountain. Actually since I have been here (in forum), this is the first time someone mentioned about CCM coffee.
I got below article from "coffeegrail.com"
Crystal Mountain is known to be sweet and nutty, full bodied, with relatively low acidity. Its taste profile is similar to the finest island coffees and is a distant cousin of the Jamaican “Blue Mountain” coffee. Unlike other Island coffees, many describe the rich aroma of Cuban Coffee to be more sedentary, than volcanic.
It seems like CCM & JBM shares similar taste profile (perhaps because similar climate and soil & altitude conditions?!).
Also, the article mentions that Japan buys most of their production. And as I know, Japan also buys most of JBM production as well.
I think that Japanese prefers the coffee flavor profiles of CCM and JBM.