I've been carrying a G42 daily since they first became available, but the two I originally bought were the two most unreliable pistols I've ever owned, and a trip back to Glock didn't help at all. When Glock made some changes to the slide stop and mags, they work fine. My current gun has gone over 5k rds since the last malfunction.
My carry load is the Speer 90 gr Gold Dot, I've fired well over a thousand of those through my current gun with no problems. When I hand cycle a round into the chamber and ride the slide forward to avoid beating up the bullet nose from repeated use, there is a slight "hitch" as the bullet hits the feed ramp but they go in without actually hanging up. And as mentioned, no problems in actual use.
I prefer the sharp nose profile of any JHP over RN, even if it doesn't expand all the time. Even the winchester 85 gr Silvertip seems to work better on bad guys than ball, despite shallow penetration.