Extremely bad. Maybe one out of twenty problems it finds is an actual problem, the rest are false errors that ruin the grammar in your text.

Great

Grammarly is a good editor. Too bad it stopped working within Word once Ventura came out. Now I have to open Grammarly as a separate app, upload the word file, make corrections, save in download file and put back into work. What a pain

Just straight up does not work anymore. It's run into the infamous chatbot problem where it peaked before slowly degrading into nonsense. Many programs like this have been having the same issue so good luck finding one that still works, especially after the "AI boom" that made any automated computer program unusable.

love it, saves me time

It really needs an option to be turned off by default and only turn on on the sites I need it.