It absolutely has some nice features like how Jira and Confluence and BB can all work together. But they prioritize feature velocity towards being "all things

It absolutely has some nice features like how Jira and Confluence and BB can all work together. But they prioritize feature velocity towards being "all things to all people" over usability. This means it's a mountain of inconsistency, bloat, and instability. It's super hard to use if page loads are many seconds long, your favorite button got moved into a hamburger menu to maximize unused whitespace, and their servers are a tangle they can't manage.