Product Reviews Pro for WooCommerce

Price: $3.99

Customers can “watch” any thread to get notified of replies to the contribution
Customers can filter reviews by star rating, i.e., show all 4-star reviews
Optionally enable other discussion contributions, such as questions, standalone photos, and standalone videos (no ratings) along with comments on these contributions
Reviews list added to manage reviews separately from blog comments
Choose to set a threshold of reviews per product to avoid showing reviews while you gather feedback
Ensures customers don’t leave duplicated reviews — enable updating reviews for a product instead!
Allow customers to attach photos and videos to reviews
Users can flag reviews that need to be moderated to alert shop employees
Create review qualifiers to prompt customers for specific information and product feedback
Includes structured data mark up for rich snippets in search results; stores using WooCommerce 3.0 will use JSON-LD schema markup
Creates upvoting and downvoting systems to determine helpful reviews or contributions
Optionally add badges to admin or employee responses or contributions to designate them as “official”
Includes support for Product Vendors to let vendors approve and manage flags on their own reviews
Display login buttons from WooCommerce Social Login on review login forms