Career in APO

Hi,

I need an advice.

I am in SAP ABAP for past 4 years and have worked on almost all areas in ABAp including workflow and webdynpro.

Currently I am being offered a move into techno-functional role in APO. I know that it would be big learning cure and would require a lot of hard work.

Just wondering, how would be APO as a career option. An opinion from experts are welcome.

Thanks in advance.