The problem with it from the beginning was that GM was using an inferior gasket material that would interact with Dex. Poor R&D IMO
I've given up trying to tell people what the pros and cons are anymore. Run what ya want. And technically they can't really void the warranty because of what coolant you want to run.

Just be sure to keep your coolant system topped off and all the air bled out of it. That should go regardless what coolant you decide to run.