I'm just curious as to what benefits using the pandapi over a stock main board with a pi running klipper. I love the concept.

What i learned is that klipper is more modular.

If you need more stepper drivers you can just add an additional Ramps board to you pi and you are good to go.

But there is one downside for me.

As far i know klipper is python2 based.

Which is end of life.