Really luscious, nicely balanced and delicate complexity. As another commenter indicated, an extra strawberry in the muddle doesn't go astray. An excellent summer party cocktail.
One of our favourite things about cocktails is that deciphering their names can be a bit like solving a cryptic crossword. We guess that the name here is a subtle and gently humorous reference to the Carthusian monks who produce the incomparable Chartreuse. And we are sure that the good men of the book love their strawberries.