I'm using the Directory Opus for a short time now, but one of the things I found annoying is that the default filename of new backups only contains the YYYY-MM-DD.
The first days when people are configuring Opus, they're frequently backupping settings. This makes it harder, because filename always needs to be adjusted.
Just my thoughts. Maybe sine Opus 13 is in BETA now, it would be good to address it.