Mine comes from cows. The farm is four hours away from where I live. So, when I buy it at Whole Foods, the milk is 1-2 days old. In terms of benefits, it's a very nutritionally dense milk that fits in nicely to a "bulking" diet. Also, I'm lactose intolerant, so I can't drink regular milk. Raw milk has live bacteria that digests the lactose.
Ya, guess I'm lactose "sensitive" - ok with a bit but too much has me rumbling and running to the toilet.
Finding an organic dairy like you've linked is difficult here unfortunately, since all cow's milk must be pasteurized by law in Aus. There appears to be a small push to legalize raw milk by some cheese makers and a few consumers, but it probably won't pan out.
I have to admit I'm a bit nervous since dairies might take liberties in terms of sanitation since everyting is going to be pasteurized. The goat farmer I spoke with sounded sincere tho, and I doubt he'd bullshit me just to sell an extra 1/2 gallon/week. Others I've spoken with seem ok with it too.
Bet I'll be knocked back by the taste at first, so I'll get used to that and then look around for some goat's colostrum (since it can be legally obtained). Organic is popular here, so I might get lucky and find a cow farmer nearby with good practices and a willingness to sell black market milk.