It's unclear from reading the site : does it offer anything more than `dd` would allow, or is the added value primarily to be a ready to use interface for those less used to unix tools?
You're most welcome, this is laid out as a simple point & click GUI tool that anyone can burn and boot from. The author's main intent is to alleviate users from somewhat unfriendly UI of Clonezilla.
I used this for ubuntu based pop-os
https://wiki.archlinux.org/index.php/Disk_cloning