After buying several (5 maybe??) different chains, this is the one I ended up wearing on a daily basis.  It is sturdy. and feels secure.  I have only worn it for a bit over a week, and so far, it is not oxidized.  When it does oxidize, I have plenty of silver polish at hand, so the prospect of polishing it does not bother me.  Polishing intricate things like this is a bit more involved than flat surfaces, but with the aid of a toothbrush, it should not be an issue.