The complete customization of any and all applications and reports is phenomenal within JDE. Being able to tailor a screen to be exactly what you need it to be is amazing. The system is also relatively lag-free if well maintained, and can process large amounts of data quite effectively, which is crucial in a manufacturing environment.
Another point that reduced friction was the ease of exporting large amounts of data to CSV or excel in consistent layouts that allow rapid, repeatable reconciliations of on-hand to perpetual inventory.
JDE is also a phenomenal software for ease of audit trail. If your organization is looking for the best way to quickly follow the numbers in a manufacturing environment, JDE is your best bet.
Ease of JE posting in this software is also very well done when compared to alternative Oracle Applications such as fusion. Review collected by and hosted on G2.com.