I have been using ON 100% Whey for the past 18 months for protein supplementation. This has to be one of the best powders on the market as far as manufacturing quality, mixability, and taste. My lifting partner uses cheap store bought powders from a major bigbox store and it pales in comparison. Some consumer reports have highlighted heavy metal issues with the bigbox powders which is not a concern with ON and probably why I pay the higher prices. I always order from BB.com for the price. As far as taste, hard to stray away from Chocolate and Vanilla, both are excellent. I did try a 5lb tub of coffee which tasted good, but became difficult to finish the tub,so I ended up mixing the coffee and chocolate to make a mocha tasting drink.