This product is used by some of the best bodybuilders in the world- including a glaring endorsement by the famous Dave Palumbo- a legend in the sport. This is a product used by people who measure everything they eat, obsess about every gram of carbs and protein they ingest and who - by rigorous trial and error- discover ways to change their body composition that defy belief. The way I see it, if organic bodybuilders who look like a million bucks swear by this product, and knowing how much they consume on a daily basis (thousands of high quality calories daily), then it's going to be good enough for me. And sure enough, I've been through several jugs of this already, and I am LOVING it. DISSOLVES INSTANTLY I put in two scoops 8 ounces of water, and it completely dissolves. I stay busy and have to supplement my protein intake and so I take 3 shakes a day. I love that I don't even have to use the metal wire-whisk ball that goes in my shaker cup. I just add about 8 ounces of water, and stir with an ordinary spoon for about 15 seconds. It barely changes the consistency of the water (no thickening agents), and goes down easily. I drink the vanilla because I love the taste- not too sweet, and no "off" flavors or aromas. TASTES AWESOME I've used 40 or 50 different protein supplements, and the worst has to be the protein supplements derived from vegetable matter. I've had protein powders that literally tasted like chalk dust. Dymatize has a winning product here with the taste being so simple, smooth, and free of surprise odors or aftertaste. It's just really REALLY good. My 12 year old son keeps swiping shakes when I'm not around because he loves the taste. HIGH QUALITY PRODUCT I'm using this product to help with putting on muscle. So far, I've had great gains in quality muscle, and I can drink this stuff at any hour (even late at night) without getting any kind of indigestion. It's top notch quality. ABOUT THE SELLER: I got my product VERY FAST, packaged properly, and there was even a little extra sample product thrown in there for free. How cool is that? You don't even see that kind of thing any more these days. I was delighted. Thanks for the sample! You have my ongoing business, and my 5 star rating. Please don't change anything