That's it! Love it!
I take 1 in the morning but not on an empty stomach. (I've started to feel really sick witihin 20 min if I take it & try to do empty stomach cardio.) Have to be careful w/ the first cup of coffee in the morning because I get just a little too 'energized' sometimes. I may take a 2nd around noon, but no later than 3 for maybe a heavy after work training session.
Also I try to cycle any thermo I take for 6-8 weeks & then go off for a while to let the receptors clear out.