Maybe unlimited, as in you can buy yourself as many hard drives as you want to allocate to it?. I'm not at all sure how it works though.

It seems like this a big stretch of the truth on their part. If you have let say 30TB of data hosted in the cloud and wanted to use this. Not on would you need a RAID yourself so we're talking probably 4-6 high capacity drives at around $500 a piece, but additionally you'd need around triple that to match the redundancy of cloud storage. Additionally you'd need someone capable of setting up a shared file system and fiber between all the access points. We're talking probably around $12,000 upfront and monthly bandwidth costs of $750. That or you can get unlimited storage from Google for around $120/mo, maybe much less. Many people still only pay around $12/mo.

You can not get UNLIMITED storage for $120/mo from google, it is simple as that.

Many users already get unlimited storage from Google for much less, but their new Workspace plans require an Enterprise account for unlimited storage which cost $20/mo. but it may require at least 5 users. So you're right, it would be $100/mo, but potentially less. I'm still on GSuite so it only cost me $12/mo.

The storage is all done on your own PC.

Correct - storage can be done on a PC or a server system - https://support.diode.io/article/vr156n18cf-is-diodedrive-un.... I personally run some of my personal Zones with a raspberry pi connected to a USB drive as an always-on backup. Enterprise implementations would use whatever server (or private or even public cloud) based storage is appropriate for them.

Great feedback and thoughts.

Then it is NOT unlimited.

Technically it is, as you can keep expanding your own storage. Compared to a cloud storage service that has hard limits on space usage.