We have 20 to 30 users in our organization.

It is simple to scale because you only pay by the user in the cloud.

Over the last few years, our practice has had between 100 and 200 users, We have scaled up, and we have scaled back.

My company has four users. 

We haven't had any issues so far. Currently, around eight users are using Zephyr, and 50 plus users are using DFS, but they will move to Zephyr very soon.

Scalability is okay. I have heard Zephyr Enterprise will be coming out with a cloud version which will be able to scale to a large size.

The product is scalable. I don't have the exact number, but many people are using it in our organization.

No.