I will be shooting a CST tomorrow!
I do say this often, if you want a sweet trigger, don't buy a Glock and plan on modifying it.
I researched aftermarket Glock triggers pretty extensively and found that a great many of them make the gun less safe in that they cheat the Glock internal safeties.
So then you have a Glock with a better trigger, but the striker block is already being pushed up, the trigger is about to slip off the drop safe ledge and the only thing making your gun safe is the trigger tab (and your good sense and holster).
Point being, if triggers are a make or break deal to you, then buy a Sig, CZ, 1911 or whatever. If you buy a Glock either keep it stock (after junking the sights) or be super selective in aftermarket trigger choice.
I do not disagree but find it an overgeneralization. The use of the firearm has a significant factor on what the owner should expect out of the trigger. Is the gun a duty weapon, CCW, HD, range toy, competition gun, BBQ gun. All would necessitate different triggers.
The bottom line is that if its not a BA/Wizard CZ trigger or a CM 1911 trigger - it isn't worth owning.