I've had no issues with 1803 at home, what's ripping my mitten right now is the number of customisation options that have been changed since 1709. I'm in the middle of updating an SCCM task sequence for a client and most steps for setting default apps, removing store apps, customising layouts and adding corporate branding have changed with little to no notice or documentation.
Oh, and getting rid of Cortana is like playing whack-a-mole.