we have the sister rig, an awd 16 Durango R/T (just under 100k now) and so far there's been a wiring issue in the front headlight, a bad front axle shaft, and a handful of random software issues (for example the memory seat buttons stopped functioning). aside from that she's been a great addition to the family.
The lifetime Mopar Warranty goes a long way to ease our minds about this complicated beast. I highly recommend it!