If I were to explain my exact feeling at this moment
I would say something like

"You know how well spellcheckers
work most of the time,
but there are little annoying differences between them all that piss you the fuck off.
Like how some spellcheckers always capitalize an "i"
and how others don't.
And how some spellcheckers automatically add the apostrophe in "don't" while others just underline it,
making you feel dumb even though you left out the apostrophe to save time...."

That is how i feel.