Pros: Organic, uses whole soybeans, lots of flavors
Cons: Archer Farms has a better chocolate version
I think Lola is right- if you have not had soy milk before, don't expect it to taste just like cow's milk. Think of it as a separate beverage, kinda like apple juice vs. orange juice. But if you don't want dairy milk, Silk is a great choice!
We usually buy chocolate, vanilla, or very vanilla, but have tried the plain and the mocha...
The chocolate soy milk is wonderful tasting, but we recently conducted a personal blind taste test, and found Archer Farms chocolate to be indistinguishable in flavor from the Silk, but cheaper and a bit healthier.
We generally use vanilla on our cereal, because we won't drink plain and can't get through the whole carton using it just for cereal. If you are eating cereal that's a little sweet anyway, it works great- but it will taste kinda funny on grapenuts and other plainer cereals.
The very vanilla tastes like a vanilla milkshake- a bit too sweet for me, but Kiwi loves it. The mocha tastes a lot like the Starbucks bottled frappuccinos, but I am sure is much healthier.
It is more expensive than regular milk, but I am guessing it's about the same price as organic dairy milk. Silk is organic, so it's actually comparatively priced. Silk also uses whole soy beans (unless you get their light versions), which offers more health benefits. Silk does have versions with added nutrients- we've bought the Silk Plus Omega-3 DHA Vanilla a couple times, and have been happy with that too.
So, we'll be switching to Archer Farms chocolate, but will continue buying Mocha and Omega 3-DHA Vanilla Silk.