I found this flavor at Western Bikeworks for the first time this year. I love coffee and dark chocolate and the equivalent of a shot's worth of caffeine is an excellent mid ride addition. I go through a lot of Clif Bars and this and the Blueberry are my favorites.
For me the Nuts & Seeds version of the Cliff Bar is just the right combo of flavor, solids and moisture. Too many of these bars are overly sweet or putty-like, some are dry and stick in your throat. But the Nuts & Seeds hits the right balance. It is my go to bar for endurance rides.
I do endurance cycling and running. My mentor tells me a need to take in about 200 calories per hour on runs and rides over an hour. These Clif bars do a perfect job for me: easy to eat, no indigestion, good energy boost. The Chocalate Brownie version is one star down only because I like the Clif flavors that are frosted with a sugar coating a bit better.