I've used it in the past because a lot of the brand websites don't ship overseas so I have limited options. That said, I've stopped getting stuff from there as the shipping is, unfortunately, out of my comfort zone!
I can buy some things I like from iherb where shipping is $4 up to a certain weight (can't remember the weight but I can get three or four bottles generally) so I don't understand why other places can't do that. I'm guessing there's some reason but who knows?
3b in South Australia.