Maca does have a fairly earthy taste that won't appeal to everyone, BUT we discovered that a great way to improve the taste of Maca in a smoothie or "green drink" is to add some lemon to the mix. I'm one of the pickiest eaters out there, but with the lemon, I can't taste the Maca in the drink.
We've had such a good experience with Sunfood's organic Maca that I signed up for an affiliate account with Sunfood. They offer lots of great organic products such as goji berries, acai powder, cacao, and coconut oil. If you like making healthy drinks in your Vitamix or other blender, it's worth checking out Maca and other "super foods" products from Sunfood.