From what I can see on the website that block storage consists of SSDs priced at ~50€/month/TB which is a non-starter. The cloud instances are incredibly cheap though, I may have a look at those.
€10 for 2TB and unlimited transfer within same datacenter (or 10TB if accessing from outside). You will get a 1Gbps or more transfer speed and many options for mounting the storage (SCP, webdav, etc). I used to use them as a intermediate backup location when I used their cloud instances and dedi servers.
That's starting to look quite interesting, thanks! 5TB of rsyncable storage for 22€/month could definitely replace one of my NAS boxes. The 10 concurrent connections are the only big limitation really. Not being able to run my own stuff is also not ideal. But it's the kind of thing I've envisioned to stop using a NAS and just point syncer at:
