Simplicity is power!
That was a great solution for our business as we didn't need any special knowledge to manage really great task management software. It was complicated to scale it to bigger business thoung due to variety of team demands.
We used this software for more than a year until our corporate standards forced us to move to JIRA.
What I like the most about ClickUp is its lightweight UI design. We were team of 50 and there was about 20+ junior members there. With ClickUp delegation was really easy as I was able to create tasks in format sufficient for particular team meembers. In particular, while checklists worked just fine for junior team members, more abstract tasks created by peredefined templates worked good for senior members, who wanted more creativity freedom.
Migration from and to JIRA was really challenging.
We needed to involve consierable engineering effortto leverage their API to export the data in sufficient format.
Also when I needed to collect some KPIs such as work balance between planning and implementation tasks, that turned out to be really tricky as to get time spent on tasks statistics.