I shoot a TRR8 for steel and a 929 for uspsa. had the TRR since February of 18
The TRR8 is a really great gun. light easy to maneuver 38Shorts, specials, and magnums all function well.
Few things I don't care for. It scratches, really easily. just kydex holster wear marred up my barrel, and the double alpha holster has worn all the finish off my trigger guard. It popped out of the holster once during a USPSA walk through (backed into a wall) when it hit the ground, it received several scratches to the blast shield.
It's been back to Smith for repair once after the barrel nut came loose and my barrel started flopping during a stage.
One of my squad buddies shoots an open TRR8 magnaported and with an Eotech on top (don't laugh, he kicks royal butt). He loves his more than mine, and really makes the gun work to keep up with him.