The primary advantage is that it does not change the user's password. Once the computer is rebooted without the Kon-Boot media, the original security settings remain intact.
Version 2.3 specifically addressed stability issues and compatibility with Windows 8 and 8.1, including support for local accounts.
The 2.3 version was a significant update tailored for the modern (at the time) Windows ecosystem, focusing on compatibility with newer hardware standards: