Very satisfied.
At first, I was skeptical.  I did buy it, however, i did not start using this product until recently.  I would take it every morning before i would go to the gym.  In a month I have seen a big difference in energy.  It really kept me going, energized. Exactly what I wanted.  Also more efficient at the gym.  At first, i would only do 30 min elliptical and now I do 1hr elliptical and 1hr Zumba.  Lost 10 pounds.  Very satisfied.
Rating: 5 stars