When a sentence hurts the eyes as much as the brain, it's sad they've paid people to do that.
Grammerly. Seems like a good idea, but the people using it want to make sure they're writing well?
Not the people that need it. Like spellcheck, it's open to user abuse. Like my kids primary school teacher leaving it on US spelling, or adding misspelt words to her dictionary, because she can't spell. Which she thought was hilarious...