First off it's a great product. The only thing that would need improvement is taste, mix with extra water and no huge qualms.
The pumps are insane did some chest, bi, and TRI work today and they are swollen like broken arms. I took two scoops and I didn't feel cracked out at all. Kicked in about 40 minutes later on an empty stomach. Overall definitely enjoyed the product and I think I would purchase again in the future because it's not overly stimulating. Brings just the right amount of ingredients to the table to get the job done. I think I would be fine using 1 & 1/2 scoops.
They are reformulating the flavor too I hear, grab some and give it a shot.
Not to mention two scoops gives you a nice full dose of creatine as well.