A good review introduction will not only hook the reader, but also provide a clear picture of the product under review and the product's advertised benefits.  For first-time users, dedicate some space to explaining the functionality of the product in some detail, treating the product as if all the features are new. Teaching new customers about a product is an important aspect of a product review. For experienced consumers, focus on the evolution of a product from one model to the next, as well as any common defects or problems users may have encountered in the past. Long-time users of a product will often read reviews for solutions to problems, giving you a chance to demonstrate your knowledge of a product. Provide the reader with the basic information a consumer likes to know before buying a product. This may include brand name, model number, measurements, target demographic, price, and so on. Talk about what you liked AND what you didn't like about the product. The most helpful reviews are those that outline both the pros and cons of a product, while readers will most likely skip reviews full of effusive praise or bitter criticism.  Make sure to clearly explain how you arrived at your judgments, and specifically address why you believe certain features are beneficial and why you consider others flaws. Most people will be looking for an unbiased review of a product, and thus a clearly explained, balanced review is more likely to be read than a review that focuses too much on the positive or negative aspects of a product (unless warranted, of course). Discuss the product under review in light of similar products available to buyers, comparing the pros and cons of each. This will both demonstrate your research and knowledge, and provide the reader with a point of reference when making their next purchase. This is particularly important for first-time buyers who may require a point of reference before deciding to purchase. Describe for the reader who you believe would benefit the most from the product, which will help them to decide whether the product is right for them. Points of interest may include how easy or difficult the product is to use, specific features that will appeal to particular audiences, as well as how the product relates to other products readers may have used in the past. A good conclusion will summarize the benefits and flaws of the product, evaluate whether the product lives up to the company's marketing, and communicate your opinion on whether the product offers good value. Choose the most appropriate forum for your review and post the it online. There are countless online venues for product reviews; some of the most popular include blogs, dedicated product review sites, and product retailers. Allow some time to pass between the release of a product and the publishing of your review. This will allow you time to properly test the product and arrive at an honest evaluation. Readers will more often trust a reviewer who can demonstrate that they have spent some time with a product before offering a review.
Write the introduction. Describe the product under review. Be balanced. Compare and contrast products. Pinpoint the target audience. Write the conclusion. Publish the review.