The LC9S has a much better trigger than the one on the regular LC9, but it's still at the bottom of the pack when it comes to striker-fired triggers in my opinion. The take-up and break are good, but the reset is way too long for a trigger like this. The reset lengths on guns like the Glock 42, Shield, XDS, and PPS are shorter and it wouldn't have been difficult or expensive for Ruger to make theirs shorter too.
I've noticed that customers at LGSs almost never check for reset when they're dry-firing, so this isn't something most people will notice when handling the LC9S. And if a shorter reset for easier follow-up shots doesn't matter to you, then the LC9S trigger isn't bad at all. But if you like to have a shorter reset like most striker guns do, stay away from the LC9S.