I've had mine close to 15 years, no mechanical problems of any kind to date. Had to replace the factory wood stock a couple years ago after it warped while drying out after getting caught in a down pour on a hunting trip.
Personally I'd avoid the new ones all together, based on the last couple I looked at they don't appear to be made to the same quality standards as the older one were. Parts fit leaves a lot to be desired, IMO. Namely the op rod/guide track fit, very sloppy.