Admin can configure the rules for reviews from the following: WCFM Admin Dashboard -> Settings -> Refund Settings.
Review Auto-approve: Checking this option will allow the admin to approve the reviews automatically. Unchecking this will require the admin to approve the reviews manually.
Review only Store Users: Checking this option will allow only the users who have purchased from the store to place a review.
Product review Sync: Enabling this option will allow vendor’s products review considered as their store review.
Review Categories: You may also set different review rating categories as well. Total rating will be auto calculated from an average of all the categories you have chosen. You can add different categories by clicking on (+) button and delete it by clicking on (x)