Yeah, I know. I wish I was braver, but I've heard so many negatives (don't ask, I can't remember) that I hesitate. Maybe someday.
Judging from your hesitance, that "someday" is likely to be the day your MBP meets its maker, i.e. goes back to Apple for recycling, and your new machine will be a FORCED upgrade of 'n' more versions of macOS than are facing you now. (Remember that they come EVERY YEAR now.)
You've asked FTM's assemblage of experienced users how they're faring with the upgrades and gotten zero negative response, so why let some anonymous complainers deter you from upgrading when
the people to whom you turn when you've got a problem have all encouraged it?
