Welcome! I also have a 2017 and have been very happy with mine (~18 months and 22K miles). I've had 2 check-engine-lights in that time. In both cases, the car was safe to drive while the dealer ordered a part and then installed. I've also taken it in for a couple of recalls, but it was never out of service for more than a couple of hours at a time.
First off, UConnect for the 2017s is different than UConnect for the 2018s. I never had any of the problems that were reported on the forum with my UConnect, but the 2017s are lacking both Apple Carplay and Android Auto. I can still play audio from my phone using either Bluetooth or the USB connection, but some apps don't interact with UConnect like they do for the 2018 version.
If you know the VIN of this vehicle, I might check to see if there's a vehicle history online (CarFax or some similar site). Most of the reported problems do seem to be with fairly low mileage, except for the 12v battery. Since it sounds like Chrysler doesn't use a high-quality battery, I'll probably go to an independent shop if mine needs replacing in the future.
2017 Jazz Blue Pacifica Hybrid Platinum