Mine didn't work.
The vendor who sold it to me said he guaranteed it to work, and I could just bring it back to him if it didn't. So I did. He then changed his tune, and said he would only exchange it for another if I could demonstrate that it contained a defective part. He knew it wouldn't work, and he got my money. Yep, he sure got me on that one.
I've never purchased anything from that vendor again.