Jira is a great tool for various reasons. You can customise it the way you want, it is not very expensive, it is easy and simple to use and it has lot of features to suite your needs. In the last decade Jira has established itself as a tool of choice for many organisation. A sparxsys we provide various services to help these companies to get the most out of Atlassian tools, every company is different and they use Jira or other Atlassian tools the way they want but if I have to list one common requirement that they all have then that is reporting.