The MP 2.0 stock trigger some find it meh to much improved but will argue Apex is way better. I have both an MP Shield 9mm with Apex and my 2.0 Compact is stock. The Apex trigger pull on mine is about 4.5lbs where my stock MP 2.0 actually I have two of them and one is 5.5lbs and the other is 5.0lbs stock. As far as crispness the apex slightly is better but both are very crisp.

Pretravel in Apex and overtravel is supposed to be less in the Apex, I haven't really noticed. The only thing that concerns me about the Apex is stories of owners getting light primer strikes. I believe maybe its an installation issue and owners are using too light of a trigger spring, maybe if they used their duty use spring it would solve it

but for a carry gun I am leaving mine stock