Anyone tried the BuiltBoost drink mixes? Do they actually give you energy? My fiance is working 12-hour days and is very quickly falling back into his old habit of daily energy drinks. He's getting the sugar-free ones, but honestly those still aren't that great for him. I got an email about the Boost being on sale and I was going to order bars today anyway, but I don't want to spend money if they're not going to help him. I searched the group and can only seem to find reviews on taste and not on if they actually work. ((And I'll also note that he won't mind the overly sweet taste people have been saying - he loves the Xtend BCAAs and those are pretty sweet too))