Awesome feature set with a sometimes challenging interface.

The interface is simple and easy to use if you have some experience with it. Configuration is also logical most of the time. However, less experienced users tend to find themselves lost in some tasks - usually complex project configuration- but sometimes simple things, such as seeing why a user can't move issues in a workflow. Jira configuration requires a good amount of experience - and even experienced users often resort to documentation. It's a tool that's easy to use if you know what you're doing and where to find the proper documentation, but novice users tend to find it challenging.

It's well suited for many scenarios, from small to large organizations, that need a project tracking software that is reasonably easy to extend if you're an experienced user. Licensing cost is probably the only major limitation. Due to Atlassian's licensing model, costs across large organizations can rise quickly if you want more advanced features, as it's often an "everyone or no one" model. There may also be cheaper alternatives if you don't require all of Jira's features.