It really could have been easy to write him off as your typical loser dad character. But like with everyone else, they made him a person. Very three dimensional and interesting.

From the his first appearance, while the Gems seemed to look down on him, he was shown as a kind and thoughtful person. And all throughout the show, we see more of that. All that he puts up with while letting Steven learn about who he is from the Gems, even at personal cost. His worst point in the entire show is lying about a broken leg, and it was just so that he could spend time with his son.

All in all, Greg is awesome. And more of him in this show is always a plus.

I still remember the pre-flashback episode era of the show, where people just piled shit on Greg "He's ugly" "Why doesnt steven live with him, oh Cause he's probably abusive" shit like that…

and then the flashbacks came and "You know, He's decent now that we've seen he used to be conventionally attractive".