Mike, it sounds like it's designed to give the "buzz", the feel of a beta-adrenergic fat burner. This always makes me wonder if the product in question is not more appearance than substance.
Personally, if you want to try something other than HOT-ROX, I'd suggest T-2. This thyroid hormone is still available if you look around. It's a very potent metabolism booster, while being minimally supressive to endogenous thyroid hormone levels.
I've used it with great success combined with HOT-ROX (although I think Cy Willson advises against this). A certain UG has come out with a product called T-5 (each Ml. contains: 25 mcg. T-3; 75 mcg. T-2).