Having both used and administrated JIRA... the on-prem version helps you ensure that it's running fast and secure, or you can end up fucking up the performance

Having both used and administrated JIRA... the on-prem version helps you ensure that it's running fast and secure, or you can end up fucking up the performance part. But on-prem also means systems that are firewalled from internet might have access to it, which helps with integration.