Well, I have bought it several times. The overall feeling is not bad for several reasons: 1) can help you identify jadeite for free. 2) If you can't find what you want, tell the customer service what you need and he will help you find it. 3) If there are any defects, she will remind you. 4) If you don't like it, you can return it. This is the most important thing, but you have to pay the freight.