The one I got wasn’t quite Chinese priced, but it was fairly cheap($45). It appeared to be a true clone of an SG. What arrived, IMO, was every bit as a good as a legit SG, from the videos of SG that I watched. I don’t think the $10 ones are as good. But Leluv had a pretty decent looking one for like $25-30 on ebay. I just opted to go one step up.
I’m glad I did, because I completely hate my extender. If I’d bought a $15 one, I’d always wonder if it was because I don’t like extenders, or I don’t like crappy $10 extenders.