Sounds like Pat won't be trying it anytime soon. Some shops have single serving packets, which would be a good way to give it a try w/out committing a lot of $$.
The ingredients are pretty innocuous, and you might be able to get similar results with a homebrew version. It's main claim to fame is the 4:1 carb to protein ratio (53g:13g per dose), and it has doses of vitamins that are useful to athletes... vitamin E (400 IU), C, Calcium, Magnesium, Sodium & Potassium (aka electrolytes), and and "high glycemic carbohydrates." The "endurox" component, if I remember correctly, is a fancy name for cijuwa, or somesuch, which is a fancy name for Ginseng. I think this latter component is a mostly a marketing gimmick.
If you decide to give it a try, there's a $2.00
rebate coupon on their web-site.