I've had my TRP for maybe 8-10 years & it was my workhorse/ every day carry 1911 until I got a good deal on a Wilson CQB a few years ago. The TRP has well over 10K rounds through it & I don't think it ever had a malfunction. The only thing I did to it was change to a military guide rod before I ever fired one round through it, and replace the recoil spring at around 7K. I have no experience with the new ones, but my TRP is GTG.