I downloaded it because it advertised itself as working for multiple languages. While it did appear to work fine for English and French, it unfortunately failed to catch basic Japanese grammar mistakes such as missing particles and misspelled words. Given that I need this most for Japanese (as that is my weakest language at the moment), I have decided to remove it from my browser.

Early days for me but it seems to do a reasonable job.

😍

Wbrew początkowym obawom okazał się prostym wręcz intuicyjnym wsparciem w korekcie tekstu.

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Miles better than Grammarly, in my opinion.

It is sad that the add-on is no longer open source and does not make transparent what is read and transmitted to the server. Complete regression.

Super hilfreich beim Schreiben von Texten, E-Mails, Dokumenten, allem! Habe so einiges über die deutsche und englische Grammatik und Rechtschreibung gelernt.

Me encanta, es muy versatil

The add-on works great, helps with both English and spelling in my native language (which I didn't expect yet).