My new G17G4 ran 200 rounds without any problems. Although 200 rounds is not a lot, I ran the gun fast and hot. No FTfeed, FTextract or FTeject. Recorded a video to see if the brass was ejecting in the appropriate direction and believe it or not it did. I am a fickle pistol owner so I have swapped out for other gen. 4 Glocks. Of the three other gen. 4's I owned, I have not experienced any of the issues purported. I know every pistol has a trade off but in my quest to find the pistol with the least amount, I think I found it with the G17G4.