Piccolo had an okay appearance in Dragon Ball Super.
Though, he easily loses a fight to both Lord Beerus and against Frieza.
I thought it was cute, when he babysat Pan.
He does get better at fighting later. He actually manages to defeat Frost before Vegeta makes him quit.
He also trains Gohan like the old days.
Gohan and Piccolo work together well during the tournament of power.
They managed to get a lot of wins.
Sadly, he gets defeated by a rather lame villain.