Users appreciate this WordPress plugin for its simplicity and effectiveness in enabling custom code additions, like JavaScript and CSS, to specific pages or posts. It is praised for its intuitive interface, customization capabilities, versatility, and ability to streamline complex tasks, ultimately saving valuable time. Many users have highlighted the excellent support from the development team. However, the plugin is criticized for being unintuitive, creating excessive database tables, and having a non-standard UI. Other drawbacks include recent feature removal from the free version, occasional bugs, and infrequent updates that may cause compatibility issues with newer WordPress versions.