I've bought several things from that seller and that's ok for the price, but it's not great quality like others said.. I don't think there are risks concerning health though. Like future bird said, it's clearly under fired, edges are rough, thick, lid doesn't fit quite well, but I knew what I was buying so, I was fine with this, but it looks like Yixing nonetheless, maybe not that high quality like you can see elsewhere.. By the way, I bought several glass teapots too and they were great for the price. Her tea is quite well too, depending the price you pay, I think it's fairly honest. Just don't expect exceptional yixing ware there that's all !