General Praise:
* Superb
* Exemplary
* Outstanding
* Exceptional
* Magnificent
* Brilliant
* Phenomenal
* Impressive
* First-rate
* Top-notch
* Stellar
* Amazing
* Wonderful
* Excellent
Focus on Insightfulness:
* Thought-provoking
* Persuasive
* Incisive
* Illuminating
* Profound
* Insightful
* Comprehensive
Focus on Writing Quality:
* Well-written
* Engaging
* Compelling
* Fluent
* Articulate
* Witty
* Sharp
* Clever
Focus on Enjoyment:
* Entertaining
* Captivating
* Riveting
* Immersive
* Engrossing
You can also use more specific phrases like:
* A must-read
* A masterpiece
* A cinematic triumph
* A critical success
The best synonym for you will depend on the specific strengths of the review you are describing.