Users appreciate the simplicity and ease of use of the WordPress plugin, which allows them to quickly set up a contact form without unnecessary features. This minimalist approach results in a lightweight plugin that doesn't consume significant system resources. Users find it straightforward to install, configure, and customize through shortcodes, and are particularly impressed with the responsive and helpful support provided by the developer, Guido. However, some users noted drawbacks such as the inability to easily change the email recipient from the site admin and limited customization options for form fields and labels. Despite these issues, the overall feedback highlights satisfaction with its simplicity and functionality.