To me, one of the most important features of a Linux distro is the capability to remaster an installed system to an installable ISO. This allows an easy restore should tragedy occur or if you want to move it to another system. I have found only 4 distros with this capability out of the 100 or so I've tried.

The mylivecd feature of PCLinuxOS is great and well integrated.

The remastersys in Zorin is fast and efficient but I shy away from Buntu based systems.

The rebranded remastersys in Sparkylinux proves it works with a Debian base but the system is a tad buggy for me.

OS4, which is updating and renaming this capability is heading towards KDE only which makes it not for me.

Am I alone in thinking this is a tremendous asset for a distro?

In PCLinusOS (on my Core I7 CPU) I can remaster an installed and configured system and write it to a bootable USB in under 10 minutes. Sadly, they are also KDE centric although their LXDE version is pretty good...

Yes, it is a nice thing. That's why most enterprise backup solutions already have options for bare-metal recovery of systems. And there are numerous products like mondoarchive, systemimager, and mkcdrec which all create bootable, disaster-recovery ISO images to perform bare-metal recovery of Linux systems of ANY flavor. Those tools can even be cron'ed, so new images can be created on a regular basis.