I have been carrying and shooting 39XX series guns since the mid 90s. Thousands of rounds through at least 7 seperate examples of 3913, 3914 and CS9.
And I have never broken anything. Not one single part. And I have never experienced a stoppage with a 39XX series gun. Not once. Ever. But I also keep mine cleaned and lubed and I change recoil springs every 3000 rounds.
So, carry what you will and buy what you want. But in 9mm, make mine a 39 series. Nothing else, made by anyone, comes close to the concealability, reliability and accuracy of these fine 9s. And they look good doing all that.
Regards 18DAI