After using Grammarly Premium every single workday for over six months, I can say confidently that it’s more than just a grammar checker—it’s a full-scale writing assistant. I relied on it to edit everything from blog posts and newsletters to business proposals, LinkedIn posts, and internal documentation.
Grammarly catches what most people miss—typos, tone shifts, passive voice overuse, inconsistent style—and offers useful, real-time feedback. While it’s not perfect, especially for complex writing or industry-specific jargon, it saves a tremendous amount of editing time and helps maintain consistent, polished communication across formats.
Key Features (Tested Across Real Workflows)
Core Grammar and Spelling Correction
Grammarly catches basic issues fast. I tested it on drafts full of intentional errors: subject-verb disagreements, double negatives, misplaced commas, incorrect homophones—you name it. It flagged almost every issue and offered clear explanations. Unlike older spellcheckers, Grammarly explains the why, not just the fix, making it useful for improving writing habits.
It also handled long-form content well, breaking down issues by category (clarity, correctness, tone) in a sidebar for quick scanning.
Sentence Rewrites and Conciseness
One of the most helpful features is Grammarly’s full-sentence suggestions. When I fed it dense, overlong paragraphs, it often rewrote them into cleaner, more digestible alternatives—especially useful for business writing.
In real use, it caught wordy constructions like “in order to,” “due to the fact that,” or passive phrases that reduced clarity. These suggestions genuinely improved flow and tone in client reports and blog content.
Tone Detection and Intent Matching
Tone suggestions are subtle but effective. When I drafted emails with unintended assertiveness or vagueness, Grammarly flagged the tone as “forceful” or “uncertain.” It helped reword phrases like “Please respond ASAP” to “Could you respond by [date]?”—maintaining professionalism without sounding robotic.
It also adapts based on the document intent you select (informative, persuasive, casual, etc.), offering tone-appropriate alternatives.
Vocabulary Enhancement
Grammarly highlights repetition and offers synonyms, but it’s smart about not forcing change. If a synonym alters the meaning slightly, it warns you. For example, if I repeated “important” five times in an article, it suggested “crucial,” “noteworthy,” and “key” with context-aware usage.
This feature became essential for editing longer content, where repetition can sneak in unnoticed.
Plagiarism Detection
I tested Grammarly’s plagiarism checker on content I knew was paraphrased from public articles. It successfully identified matched phrases and linked to the original sources. It’s not as forensic as Turnitin or Copyscape, but for blog posts, academic essays, or client content, it’s strong enough to catch most accidental overlaps.
Browser Extension, Desktop, and Docs Integration
I used Grammarly across Chrome, Safari, Google Docs, Notion, and Word. The extension worked smoothly almost everywhere. The integration with Google Docs has improved dramatically—suggestions no longer lag or double-up.
The desktop app is ideal for distraction-free editing, and the web app version lets you paste large blocks of text or upload Word files for in-depth review. It also stores all documents in a dashboard for history tracking and reuse.
Use Cases (Personally Deployed)
- Email Comms: Edited over 500 emails for clarity, tone, and conciseness across internal and client-facing conversations.
- Content Creation: Reviewed 50+ long-form blog posts and articles before final edits—cutting revision time in half.
- Business Docs: Cleaned up proposals, slide decks, and reports with tone and structure guidance.
- Social Media: Reviewed short-form posts for voice consistency and spelling on platforms like LinkedIn and X (Twitter).
Pricing and Plans
I used the Premium Plan at $12/month (billed annually). It included:
- Full grammar and punctuation suite
- Clarity-focused rewrites
- Tone and formality suggestions
- Plagiarism checker
- Weekly writing insights and analytics
There’s also:
- Free Plan: Covers basic grammar/spelling only.
- Business Plan ($15/user/month): Adds team usage, style guides, admin controls, and centralized billing.
Note: No hidden fees, and the subscription paused smoothly when not needed.
Pros and Cons (From Daily Use)
Pros:
- Excellent real-time grammar and clarity feedback
- Sentence rewrites dramatically improve readability
- Reliable tone suggestions help maintain professional voice
- Intuitive interface and seamless multi-platform integration
- Great for both long-form editing and everyday communications
Cons:
- Overcorrects sometimes—especially on stylized or informal content
- Not customizable for niche jargon or industry-specific style guides (unless on Business plan)
- Doesn’t replace deep editorial review for publishing-quality writing
- Limited in formatting-aware contexts (e.g., it can’t edit WordPress blocks or email builders natively)
Final Verdict (After 6 Months of Intensive Use)
Grammarly is one of the most dependable writing tools I’ve used in a professional setting. It’s not just a spellchecker—it’s a real-time editor, coach, and safety net for everyday writing. Whether you’re sending an email or publishing an article, it increases confidence and reduces mistakes.
It won’t write for you, and it’s not a replacement for human editing in high-stakes content—but as a constant writing companion, it offers exceptional value.
Rating: 8.2/10 — A must-have for professionals who write regularly and want clean, confident, on-brand communication.
