Rclone. Not because it's a complicated tool, but because I would like a history of my file transfers and a few graphs to show we what speeds, files sizes and whether the transfer succeeded. At the moment in order to confirm my home backups have succeeded, I have to run a separate size comparisons between my different datastores.
I looked at it a few months back and it didn't have the history side of things, just the setup and realtime stats which I'd already got through the CLI. Thanks tho!