Another fairly good gui for Borg is Pika Backup. https://gitlab.gnome.org/World/pika-backup

I love vorta, I have it on all my machines. It's great for my (non-technical) husband who doesn't want to know anything about Linux.

Then everything gets backed up to my local server which then syncs out to remote storage. It's great.

Can't wait for Borg 2 to hit stable. The transfer command solves so many problems