My main use case for Dell APEX is that I have some data for a project, and I wanted some data in-house. I was looking to purchase a server for that, but then I learned about Dell APEX, which helped me implement in-house data. The pay-as-you-go model is very beneficial.
A specific example of how I have used Dell APEX for my project is that it serves as an in-house file server for a project only.
I am currently using Dell APEX as a file server and am not using it for other projects.