Users praise the WordPress "Shortcodes Ultimate" plugin for its versatility and ease of use. It has been lauded for helping users add complex elements like tabs, sliders, videos, buttons, and custom code snippets without needing coding expertise, making website management significantly easier. The plugin's numerous customization options, intuitive interface, and reliability are frequently highlighted. Many note the plugin saves a considerable amount of time in designing and maintaining websites. However, some users criticize the plugin for prompting frequent upgrades to a Pro version and insufficient free support. Overall, it is a highly recommended tool for enhancing website functionality and design.