4/5
First off, I have been way excited for this pre-workout, and all that it was hyped up to be. It is supposed to be "Craze"y good at helping with focus during a workout, and from what I have read a lot of people didn't notice much of a good pump at all, but loved the ability to focus.
First things first, This stuff is pretty nasty. I got the grape flavor, and its basically bad artificial grape medicine flavored. Mixes very easily even with a spoon though.
My dosage is usually 1.5 scoops. I do have some weird reactions I have never had with any other pre-workout with this stuff though. If I take it too late in the day, I can fall asleep at night, wake up about an hour later, and feel not tired at all. I then toss and turn for up to 4 hours some nights, because my brain is jst wide awake. On one occasion I have also taken 2.5 scoops in a day, 1 in the morning, and 1.5 preworkout with another scoop of Beta-cret just for some beta-alanine and some more caffeine, and I had Horrid Headaches that kept me up for 4 to 5 hours into the night.
But all that tells me, is that this actually is very strong stuff, and not severely under-dosed like most products on the market.
So far I really like this for workout out, but it makes sleeping suck if you take it later in the day. But other than that, Its really good ESPECIALLY if you have a hard time focusing in the gym.
I have had better workouts with other products, But I love how I dont need more than one scoop, and two scoops is sometimes too much.
Or this is my review on my blog.
austinscrazyscience.blogspot.com/2012/12/ds-craze-review-driven-sports.html