I don't know, I'm only in season 2, but Hank's been a good guy so far. Yeah, he's a misogynist pig and a typical "loud American" -- full of bluster and always needing to be the alpha, but...I don't know, I guess I've just known people like that before, and they've been good people, so I transfer their characteristics to him.
But that said, I can see why he's not very likeable, so even though he's a good guy, hubby might not want to watch the show just for him.