This plugin adds ability for the users to rate and review listed content. Star rating is added to the items. Reviews can be set to be approved by website admin firstly before its posting. Each item category can have own rating criteria.
Reviews and rating can help you improve your directory business. That way regular user can make better image about services, products, etc. listed on your site. It also involves them to use your site more and contribute to improve the quality of your website via reviews.