Not so great if you are multilingual. I understand projects like this need money but the pathological need to show premium upgrade ads in the UI over usability of the product shows the priority is not helping you the user. Also don't fake having a language available in the setting and then not be able to spell check it.

Too good, I like this

Das Add-on funktioniert manchmal einfach nicht mehr, wird nicht mehr angezeigt. Abhilfe schafft dann nur entfernen und neu installieren. Bitte behebt das mal! Bitte entschuldigt die schlexchte Rechtschreibung und die Tippfehler, aber mir wird gerade nix mehr angezeigt.

This is a great tool and one of the most accurate I've used. I only have one complaint. It always flags for the Oxford comma. The Oxford comma is an abomination and I will never, NEVER recognize it's use in the English language by anyone but traitors and charlatans! (It would be nice to be able to turn it off in the check)

The extension is not that bad, but it keeps telling me that there are mistakes but they aren't mistakes and it wants to separate the words from each other and mess up the whole thing or even replace my mistake words with worse words but the extension is not bad, so it deserves a solid 4-star.