WordPress users find the Post Type Switcher plugin immensely helpful for correcting errors in post categorization, bulk-editing posts quickly, and preserving metadata, SEO settings, and URLs during conversion. The plugin simplifies tasks that would otherwise involve tedious manual effort or complex SQL commands, saving users significant time and reducing the risk of database errors. Despite its benefits, some drawbacks include occasional compatibility issues with certain themes, possible design element disruptions, and inability to work flawlessly with newer WordPress versions or the Gutenberg Block Editor without additional plugins. Overall, it is seen as a valuable tool in many WordPress setups.