I used to use Optimum Nutrition's whey as well. Tastes decent, mixes easily and is cheap. However, I've switched over to Vitamin World's Value Whey. It tastes a bit better then Optimum Nutrition and is a bit thicker and more creamy. Has about the same nutrient profile too. Actually its a blatant knock off, but with my discount card I get it for 20bucks/5 lbs so its a few bucks cheaper.