I have been waiting so long for this product, and it has absolutely been worth the wait. Besides leaving my teeth feeling clean, the flavor is fantastic -- lightly sweet with a strong delicious mint. You'll barely notice the slight bitterness which is only noticable in the aftertaste -- even then, it's barely noticeable as it's not the strongest lingering flavor. I've been using unsweetened tooth powders for years, so this seems very sweet to me; however, it's just a light sweetness in compariso...