Started out with half a scoop, because I've had a bad experience with preworkout to test my tolerance. Didn't feel much of anything. Next I tried a whole scoop and boy did I feel it! Within 15 minutes my focus was getting intense. By the time I hit the gym, I was ready to go. I didn't procrastinate, I wanted to destroy my workout. I hit the weights hard as hell! and it felt like I could of keep going for days! Focus, energy are great. Pumps good too! I took points off because the terra beads don't mix well and it taste like ****! But it gives a steady energy feel I like it.