Antihero, 7.62x54R.net hasn't posted any ratings on it, but you can check others at this link:
http://www.7.62x54r.net/MosinID/MosinAmmo.htm
Most of what I've heard about it is negative, although if that's because of the cost for what you get, or because it's truly crappy ammo, I couldn't say. I've personally never tried it and they don't stock it here locally. It's brass cased, but berdan primed, so reloading it isn't an option for most in the US. I bought up 1300 rounds of Yugoslavian '70s surplus that was basically the same thing except corrosive primers, and paid about half of what Ammoman is charging for Olympic.
Some threads on Olympic in general:
http://www.gunboards.com/forums/topi...OPIC_ID=154850
http://www.ar15.com/forums/topic.html?b=3&f=16&t=220304
My suggestion is to only buy a box or two if you want to try it out.
jm