Perfect combination of dosage and value
I've been using this product for a couple of years now.  Every morning I wake up and take one pill to get my body awake and prepped for my morning run, yoga, or whatever I choose to do.  It's the perfect amount of caffeine to jump start without making you jittery and overly caffeinated, and the L-theanine and B vitamins are a bonus that I think adds a little extra.  Also, for what it's worth, the bottle/packaging is small and fits well in bags.
Rating: 5 stars