Reading product-based reviews is the best way of seeking guidance before embarking on a shopping mission. The person whose advice you seek is neither a manufacturer nor an advertiser, but a consumer like you. Therefore, his opinion on a product or service is going to be without any preset motivation.
When you finish reading a review, you will find a panel(as shown below) at the bottom of the page, asking you to rate this review. Choose the option that best reflects what you think about this review. Let others know how you feel about the review they have written by rating it fairly.
On the review page you’ll see a’Comments on this Review’ tab on the top as well as bottom of the page. Click on it to post your comments on the review. Leaving a frank, albeit courteous comment on the review that you have read, will enable the reviewer get genuine feedback.