Reviewers broadly see Grammarly as a dependable daily writing aid that catches grammar, spelling, punctuation, and clarity issues quickly across browsers, apps, emails, and documents. Many say it saves time, boosts confidence, and is especially helpful for non-native English speakers, students, and people writing professionally. The main complaints are familiar: premium features feel gated, some suggestions can be intrusive or flatten personal style, and integrations can be clunky, with reports of annoying extensions, weak Google Docs support, and even heavy CPU use on Mac.