Users appreciate this WordPress plugin for its ease of installation, customization, and seamless functionality in managing product stock notifications. It efficiently replaces the purchase section with an email notifier when items go out of stock, thus recapturing potential lost sales. The plugin is highly effective, user-friendly, and offers excellent customer support. The free version is powerful, and the premium add-ons provide valuable enhancements. However, there are some drawbacks. Users mention the plugin's limited design customization without paid add-ons, occasional issues with email notifications, and performance slowdowns. Incompatibility with certain third-party systems and cache plugins can also be problematic. Despite these flaws, the overall sentiment is positive due to responsive support and practical features.