I received a replacement for the pistol that failed after the first shot and proceeded to the range for testing. Unfortunately, this replacement also failed with exactly the same failure mode as the first one after only 15 rounds. Disappointed again, I returned it for yet a third replacement (yes, I am determined). This time the trigger remained in tact for 100+ rounds. However, the takedown pin came loose on two occasions (one of which resulted in a smoke stack) and the left side laser button requires superhuman force to activate. It should be noted that the third replacement was selected based on a serial number approximately 2000 digits removed from the first two. I love the feel and features of this gun and will return the third replacement to the factory to get the laser button repaired and to tighten the takedown pin. I know that S&W will eventually "make it right". Oh, I should also mention that this gun shoots low (off hand and benched).