It has helped me overcome simple grammar mistakes I often used to commit. I suggest you add few features from the paid versions.
Thank you, Team Grammarly!

nice automatic beaviour

Excellent. The best I Ever use.
but is it for free?

Helpful. Hope it isn't responsible for "adding on" to my postings, ie: completing them with irrelevant pop up material.

Most useful to have! Thanks! :)

A+

Works great

In love with Grammarly since I've tried this amazing product <3

However, one thing about this addon is really annoying - lack of ability to disable addon on a certain webpages. I have to disable it completely if it causes issues with some WYSIWIG online editors and then enable it again. Please add an option to disable it selectively.

p.s. As a Ukrainian, I am proud of this talented dev team!

Perfect

I love this product, it catches things I would never have caught. On the other hand it sometimes misses items but nothing is perfect.

I love this tool, and use it daily. It has forced me to become a better writer. The only complaint is the cost is very high.