We implemented SAP HANA during our SOH (Suite on HANA) migration. SAP HANA replaced Oracle as our backend DB for SAP ERP. Not only for ERP, for SCM and BW also my organization uses SAP HANA as backend DB.
Since all ERP data is being stored in HANA DB and all other different business applications are integrated with SAP HANA, the features, functionalities, and benefits of SAP HANA not only used and impacted the IT department but also across the whole organization.
The in-memory technology helped business processes to be executed much faster than it was before. In my organization MRP process before HANA, it took 7200 sec and after HANA it takes only 1200 sec. Similarly, process time has been minimized for many business functions like stock reports, invoice processing, Sales order creation, Material availability checking for process order, and many more. Significant improvement has been observed in SCM and BW processes. Not only in business process time, HANA has also helped to simplified the connectivity and integration method with other DBs and applications. Due to its compression capabilities, HANA has also reduced the DB sizes which helped the organization save cost hardware cost.