The documentation for the Windows client (1) almost seems like a joke. In the screenshots the text gets cut off in the UI, there's sentences that say "don't use this versioning feature we're about to talk about" and tons of text that's been striked-through. There's also zero mention if the client supports backing up open files via volume shadow snapshots which is basically requirement number one for any Windows backup client.
We're really all about the direct unix to unix connection.
The point of rsync.net is that you can log onto any unix system, anywhere, and interact with your cloud storage - with no software installation or configuration necessary.
The Windows Backup Agent works very well and has recently been updated but the documentation you are seeing reflects the fact that it is a secondary function here at rsync.net that is mostly provided for the convenience of customers in mixed environments.
I had a pretty underwhelming experience with rsync.net and their cheaper version without snapshots a year ago. Speeds where initially 1MB/s on a gigabit connection between Sweden and their Switzerland location. After complaining they exempted me from traffic shaping and I got 2-4MB/s instead.
I know who you are and I am sorry to hear about this (again).
This is a weird, known issue that somehow keeps cropping up on our init7 network connection specifically to scandinavian countries.
I'm sorry we couldn't resolve it.
If you can stand your data being in the United States, our Denver location has a 10gb he.net fiber connection which is God's own Internet. Recommended.
Nice to hear that my experience was the exception and not the rule! I'm pretty happy with my current solution combining a cheap VPS in the Netherlands for the "I need a server to put some files on" usecase and (encrypted) backups to Backblaze B2, but I'll keep it in mind if I ever need some storage in the US :)
Unlike what their name (rsync) suggests, they do seem to support Windows clients and aren't *nix only:
https://www.rsync.net/resources/howto/windows.html