I'm not managing the solution; I'm only using it. Therefore, I cannot speak to its scalability. That said, from what I understand, the solution can scale. 

All computers and servers are using the solution. I'd say there are about 100,000 users on it in our company.

We have around 80 solution users in our organization.

iboss is a scalable solution. We deployed it for around 300 users, and there's no limitation on the number of users.

Yes. To scale up, a new iboss Node Blade Chassis must be purchased. However, I think this new device will solve their scalability issues.

We find the solution to be quite scalable. If an organization needs to scale up they can do so with iBoss. It should be a problem at all.

We have about 20 to 30 people on the solution, so it's not a huge amount. They are all mainly end-users.