Comprehensive, Customizable and Collaborative

I use ClickUp for task management between several departments such as Technology, Finance, Operations. For each department, the board serves a general project management purpose. The primary use case that we all have in common here is to ensure all deliverables are being tracked and nothing falls through the cracks. Specific to each department, the use cases can vary:
Technology: With tech, I use it to mainly check all of my prioritized tasks as a product manager and to see if there are any expected delays in any of the tasks. We also use it to address bugs and resolve them. Sprint management is the main feature that we use amongst ourselves to ensure that our deliverables are structured properly. We also use small features like tracking blocked and "waiting-on" tasks to make sure that if there is a particular item that needs attention and unblocking, I can take care of it.
Finance and Operations: With finance, we mainly use the boards to manage the requests that have been submitted to us. These go through an internal pipeline within finance and then are transferred to us using buckets that exist on ClickUp. The customizability of these buckets allows us to track them very effectively

For me, this has primarily improved collaboration with all departments that I deal with. As a PM, I have to deal with several stakeholders and ClickUp allows me to do that seamlessly.

I have used this for brainstorming as well for my own particular tasks. Other than that, my primary use for it is collaborating on sprint management and project management. I have easy access to all boards that have been clearly segregated based on their categories.

The integrations available with the following have helped:

1. Google Sheets/docs/slides - this is a tool that everyone at my org uses quite often and the ability to easily attach such URLs has greatly improved the convenience of having all of the necessary information available
2. Email - notifications with URLs to specific tasks have made it much easier for us to ensure we are not missing anything
3. File attachments - the flexibility to attach files has been quite easy

What would help improve:
1. Previews of files such as PDFs
2. Integration with slack for notifications