Yes i am also heard about them accepting bitcoin but i am quite not interested in buying gold and i think they are also not available worldwide.
it indeed sucks that they only ship to people in the usa. but like me, when you have family living there i use their address to let them ship the gold to. and my family then send it to me in europe. i have once bought a 5 gram gold bar from them and will buy another 5 gram gold bar in the coming months, but now will do the payment in bitcoin.