With the proviso that I haven't had a chance to do and explore this upgrade yet myself, I suspect a couple of cautions are in order. Full backup is essentially an extended version of the Bundle backup from previous version, which is great, but it looks like it has the same caveats...
As has been discovered, and makes logical sense, restoring from a full backup after a firmware upgrade overwrites any new factory setlists or presets that came with the upgrade. For that reason, it would be great if Line 6 could provide the factory setlists as separate downloads.
A corrupted preset can prevent you from being able to restore. In fact one of the biggest new features of 2.30 IMO is that it appears to detect at least some corruption when you do the export, so you know then to isolate which one and deal with it, instead of finding out when you really need to restore that your backup is unusable. I have no idea if it's actually doing any kind of on-the-fly inspection or testing, but my guess would be no, it simply tries to export, and goes off the rails if it hits something sufficiently unexpected, like software does. It's still great that it fails on export in some cases, but there may be other kinds of corruption that won't be detected until you import.
For all those reasons, with prior versions I think many people did setlist and preset backups in addition to bundles. That's quite likely still wise.
I don't mean to knock Line 6 or this upgrade, by all reports it seems awesome, can't wait to get there myself :)