I’ve that in use on my personal pc (Ubuntu) for my personal files. Bringing in the pictures via Dropbox. It works flawlessly for about 1.5 yr and 150GB to Backblaze. What put me off initially is that the most important part of backups: testing the restore process was / is less documented. Got it tested by just using common sense and a fresh temporary install. (Any pointers to how to do automatic integrity tests greatly appreciated.)

Do yourself a favor and use borg.

https://news.ycombinator.com/item?id=29210222

If you have extra space, you could rclone the result of locally run borg to a cloud storage or find a service that accepts borg directly.

I haven’t used it, but the comments on Reddit indicate there are issues. You may easily find them.