I find it completely acceptable. I think the brand is "NOW Foods"; I'll check the website of the store I bought it from. BRB...
EDITED TO ADD: I went to the store's website, and it didn't list the specific brand. I went to NOW Foods' website (which I went to shortly after I first bought some), and it looked familiar. I need to go to this store again within a week; I can double-check the brand if you wish. I DID notice the cost of the powder listed on the manufacturer's website. It's organic, which may be the reason it costs about $11 for a 14-oz. bag (on the manufacturer's website). I haven't figured out how many servings that makes, but I'm pretty sure it's a lot cheaper than (for example) "Silk" brand soymilk (which is also very good, and more easily available in regular supermarkets).