Oh yeah, they have gotten a lot better. I had so many dud new guns for a couple of years it was like I was jinxed.
I should have put in "Worst Semiauto", which was the bought new Colt Combat Commander in SS, and it was total junk. Chatter marks on both the frame and slide, Until it was worked on twice by Colt and again by a local gunsmith, it never got through a whole mag without at least one jam. That was with 230 gr. FMJ. Trying to shoot HP ammo was just an insane idea. I haven't had a gun with any issue, used or new, in about 5 years. Last one was a Taurus 809, it had problems with anything but 124 gr. FMJ ammo. Taurus was unable or unwilling to fix it. I sold it and later on got another 809 and it was perfect. It shot anything and I have kept it. I have 3 polymer TDA guns, and I would put the 809 I have now in a close to second place, behind my CZ P-07 Custom Shop, and my favorite and cheapest of the 3 the SAR CM9 G2. If it was twice the price, it would still be a great gun, but for $260 (I paid 250 shipped!) it's fantastic.