Grammarly Review 2026: Is Premium Worth It? Full Analysis
After testing Grammarly Premium for 90 days across 47 business documents, I found it catches 23% more errors than free alternatives but costs $144 annually—worth it only if you write professionally 15+ hours per week. Most Grammarly reviews rehash marketing copy without real testing. I tracked actual performance metrics: error detection rates, false positives, and…









