Funny thing. I just got mine in the mail today from Chimungmung. It's decent quality. Worth the purchase.
If you want to fix that leg thing it's really simple. Just put a little clear nail polish on the peg. It'll give it more friction to hold together. Second option is to just take a tiny piece of toilet paper and use that to make the peg fit tighter. That's what I did.
Here's a youtube video of a review. The guy tells you the issues you'll come across with the KO. They're identical to the issues I have.
http://www.youtube.com/watch?v=w33vHNosiyg