Same question here
Among the various boxen I have, my MacMini (late 2012) with a 4-core 2,3 GHz Intel Core i7, 16GB main memory
256GB SSD System disk and 1GB HDD Data disk is humming along quite nicely on High Sierra 10.13.6
[XP in a sandboxed Parallels VM for the odd legacy Windows app I can't do without]
Should I upgrade to Mojave? I have an Android phone so no iPhone advantage.
I know I can always reimage if it all goes phut but.....
Advice?
Mac