Mine, bought ~2005, was flawless and accurate on Federal bulk 550 boxes and it ate quite a few of those boxes.
Its a perfect plinker as far as I'm concerned.
There have been a few turn up with cracked slides, but that seems to be reserved for the ones with the weight/compensator thing at the muzzle. Not sure how or why.
All-in-all... you scored a fun little freebie.