Ya'll so funny......//content.invisioncic.com/y282845/emoticons/hilarious.gif.02a037aad04aa96f19982b298a3d70a8.gif:hilariou://content.invisioncic.com/y282845/emoticons/hilarious.gif.02a037aad04aa96f19982b298a3d70a8.gif
the only downside I have heard about it is that it is smaller than most 1/0 and it also has a clear plastic "core" running in the middle of it making it smaller yet. Otherwise it's real copper and looks nice.
I used some Monster 1/0 in a buddy's install (I got it off of e-gay for a good price). For the price, I'd buy Knu first. That being said, it's a little stiffer than Knu Fleks, but it does what it was meant to do.