We use it at our barn for those who are a bit high strung and it has done a great job of giving them energy without making them fizzy. We use the pink bag which I believe is different from the white bag. The original Strategy has gotten mixed reviews on here. Some people love it, it works well and is a good alternative to traditional sweetfeeds. Others find it makes hot horses hotter.
I think for the price, its worth a try. If you are looking for something a little lower in starch, a few members have directed me to Blue Seals Trotter mix. Its alfalfa based, not grain based.