По удобству - нет нормального ручного режима. Или вылазит везде, или отключаешь везде. Тогда при каждой попытке проверки нужно разово разрешать работу. А требуется просто перевод выделенного текста по запросу.
По качеству - иногда предлагает нелепые или несуществующие слова, сам путает падежи. В целом норм, помогает для быстрой вычитки больших объемов текста.

Very useful indeed.

The only drawback being occasional pestering to subscribe to some supposedly premium version. Nobody possessing good facility in use of language requires that embellishment.

It helps me so much when pasting texts from PDFs into some input area. I just wish it would detect names when analysing scientific papers with a gazillion references.

très bon outil

By default, it enables checking for all domains and send text to remote server. It can be configured, but it was very risky to leak private data.

everything works as expected but the response from servers is very slow for sentence rephrasing.

SUPER...rien a dire

Grammarly was kinda buggy and annoying. This is way better :D
Though price and limitations for the free versions makes this 4 instead of 5 stars.

It's very annoying that the icon always move with scroll. I think you'd better to fix it.

Davvero utile e precisa ma anche se si sceglie una lingua quando si scrive in altre l'overlay mostra descrizioni nella lingua rilevata, non quella scelta dall'utente. Non è utile se si sta lavorando in un testo in una lingua che non si conosce e le descrizioni sono nella stessa lingua. In ogni caso, l'overlay dovrebbe spiegare nella lingua scelta dall'utente.

It helps me to improve my knowladge of English. Thanks a lot.

Works well for English , but no mistakes are detected in Tamil even obvious ones

sehr einfache und genaue Möglichkeit zur Textkorrektur