I just recently started a stack that I am enjoying, however I there is only one supp in this stack that I have been taking long enough to right a review on, and that is Purple Wraath. This product is a BCAA drink that is great! It tastes great, gives you a great amount of amino acids and also has a moderate amount of beta-alanine in it which will give you a great pump at the gym. One thing I will say is if you are not familiar with products with beta-alanine do not get nervous when your face or other parts of your skin get itchy for a few minutes, I promise it is normal haha. I would highly recommend this product.