I have two... I spent $15 on a couple 18lb springs, and spent an hour each with a buffing wheel smoothing out some parts.
That made for some nice triggers.
But that isn't needed... Just a few hundred rounds and a spring swap will net you a decent trigger.
It's all down to what you want. If you want a very good to great trigger, you need to put a little more money and time into it.
For competition, more money and time. Or just get a competition ready model. Though the aftermarket competition triggers are better, the factory competition triggers are very good.
They are designed to be a combat pistol, so they are not going to be top dog out of the box.
But if you want, you can transform the trigger into something beautiful... Fully tweaked out, it is probably the best, or one of the best, DA/SA triggers you can get.