Users appreciate the WordPress plugin for its simplicity, reliability, and effectiveness in enhancing website security. They specifically commend its capability to block unauthorized login attempts and hacker attacks, which provides peace of mind and protects their sites. Features such as email notifications about suspicious activities and the ability to track login attempts are particularly valued. However, some users find the regular email alerts annoying, and a few have experienced technical issues with updates. Additionally, there is criticism that the plugin's method of limiting attempts per IP address could be circumvented by changing IPs, and the dashboard widget is considered too large by some.