This review summarizes InstaBuilder, a WordPress plugin that allows easy creation of marketing pages like squeeze pages and sales pages. The plugin takes only 15 minutes to learn and use, and provides pre-made templates, images, buttons, and customization options. Features include custom backgrounds, opt-in options, sharing options, and A/B testing capabilities. The reviewer gives InstaBuilder a rating of 9.8/10 and recommends it for its ease of use and comprehensive features.