More secure than Debian, because it doesn't use Systemd.

Isn't based on systemd which can spread malware into your system.

Devuan is Debian just without systemd, it just mirrors the the Debian archive and repacks packages that have hard dependencies on systemd.

It is stable like Debian.

Default XFCE theme is unique of all the XFCE distos including MXLinux, Xubuntu etc.

It is easy to use and is a good choice for beginners.