I have 3 of them in the family, 1 with the 6 sp manual, the other 2 the 9sp auto. The 6sp manual has the most miles, just under 30K, the 2017 auto next with about 25k, and the last one has about 10K. There have been some issues, no breakdowns, all able to drive in for warranty repairs. The dual mass flywheel in the manual let go at 12K, replaced under warranty and has been without other issues since. That car also had the MyLink replaced for some erratic wireless and bluetooth issues, which continue, but a bit different now. I also had the drive door handle replaced, as the button was working intermittently. It also has the EGR cooler, and an injectory replaced. The 2017 had the EGR cooler replaced, that became a saga due to parts not being availible and caused it to be stuck at the dealership for a couple of months waiting for a GASKET of all things. It also had a rattle repaired near the drivers side door post, as well as the rear driver side handle with that switch stopped working. The last 2018 has thus far only had oil changes, it did have the EGR DTC code at one point, but cleared on it's own and when the dealer had it for oil change it had cleared from memory, so not replaced like the other 2.
I also have a Gen 1, that has about 60K miles. It's had mostly emmissions items worked under warranty, and not much since.. it did have an issue with a oil spout/bracket that broke (design issue) that I just found and fixed before it became a bigger issue.. that is not an issue at all with the Gen 2 having the filter and drain right next to each other on the oil pan.. a very easy to work with location.
These are pretty rare cars with the Diesel engine.. I think I have probably more in my family that the rest of the county.. and it's unlikely there are many others one have 4 cruze Diesels. (If you look at my photo avatar, that is the 4 Cruzes in the driveway)>