Are local AI grammar suggestions good enough vs cloud tools?

Proofly uses Chrome’s on-device AI to check spelling, grammar, punctuation and style – everything happens locally, no text sent to any server. That’s great for privacy, but I want to make sure it’s also great for quality and speed.

If you try Proofly (or even just imagine a local-only tool in your stack):

• How do the suggestions compare to your current grammar checker (Grammarly, LanguageTool, etc.)?

• Are they accurate and helpful enough for real-world use (emails to clients, docs for your team, public posts)?

• Is the speed acceptable, slower, or surprisingly fast vs what you’re used to?

• In which cases would you still fall back to your existing cloud tool?

Honest, critical feedback is super welcome – the goal is to make a local, private assistant that feels like a true replacement, not a compromise.