Hey! Thanks for asking. On mobile right now so this isn't comprehensive but a few advantages jump to mind.

1. Compression/deduplication. Your data will (generally speaking) take up about half the space it did before even including the multiple file versions.

2. Automation. You won't have to manually do anything after you configure a schedule once.

3. Management of multiple backups.

4. A really nice native GUI

5. All the advantages that backup with file versioning has over sync (which is what it looks like you have). Safe from ransomware (you'll have an older version always even if your infected ones get synced accidentally), projection from human error by being able to revert to older versions, etc

Duplicacy would have been a better comparison since it and blobbackup are backup tools, whilst Rclone is built for sync and has supporting tech like mounting for that usecase.

It's minimalistic, I went to check Rclone but couldn’t find schedules backups or a GUI so I can already see how this app could be appealing to some.

RClone is more about copying folders/files between storage systems, it doesn't pack files together like other tools. I use Rclone for larger files like pictures or media files that don't change or move around, pure sync to targets. You can use cron to run it if you want.

I'd be more curious what the advantages are compared to Arq.

It's generally faster to backup [1], way faster to restore [1], backups use less space [1], has a native app for each OS and usability (subjective I know but give the two a shot yourself) is better imo.

[1] Benchmark on open data set. https://blobbackup.com/10_gb_benchmark.php

How does it scale to larger datasets (TBs of data)? For example, Duplicati is much slower with large datasets compared to small/medium datasets, because of it's database. Once, the database grows too large (eg. multiple GBs), it becomes too slow to be usable.

Which version of Duplicati was used in this benchmark?

Operations are streaming and there is no local database. So memory consumption and config data storage are very tiny by design.

The largest backup a user has reported using this with has been 5 tb and it ran without a hitch.

I'm pretty sure it was the latest duplicati for the benchmark. Maybe the second latest. I forget.