I bought this to replace a cheap, thin yin-yang pendant that I used to wear and I'm very satisfied with it (pairing it with a leather necklace strap sold separately also on Amazon).  It's got a nice heft to it so it won't sway around so easily and feels like it's well made.  About the only possibly negative thing I can say about this otherwise awesome pendant is that the back metal can discolor after a while (being exposed to water, sweat, etc.) but you won't notice that unless you take it off.  Even then, I'm betting that a simple silver-cleaning solution would fix that (like any other sterling silver jewelry) but it's really not such a big deal so I haven't tried this yet.

How much do I like this pendant?  One time I was in a rush and I didn't clasp the leather strap properly resulting in the pendant falling off.  After having worn it for several months, I didn't hesitate to buy a 2nd identical one!