SAP Table Extraction via External ETL Tools

Hello Team,

I have a requirement to extract data from various SAP Tables from various SAP instances & send it to NON Sap systems for further use.

SAP System used is ECC & the choice is to be made which ETL tool to be used to extract data on a daily frequency which could consider to extract almost 2 GB data per day.

Please help me with your experience which ETL tools goes best with SAP with no hassles in Configuring.

Industry practice preferred .