The noticeable difference in the trigger (not the first half, just the second part that makes the gun go bang), does not seem to be bad, it's noticeable but not drastic. But it was neat to actually see that the trigger now resets without the dove tail safety being depressed. Once you watch that vdo it's obvious what the concern was/is.
But, lobbing 100 rounds down range with cheap federal ammo and not having a single issue is nice. For a carry 9mm, I'm extremely happy with this thing, one of the best and easiest 9mm I've shot. I can get back on target pretty easily, during a rapid fire, or double taps, at 15' all my shots were center mass.