Unlikeable
It's been well established that Jimmy was a complete tosser and made precious little effort to connect with either of his children.
I like the premise of this show, but for me, the trouble is that the lead is so thoroughly unlikeable.
Otto also has his moments where I want to shake him and say, "Pull yourself together, man, and stop hiding behind your sister's skirts!"
Duvall is primarily humorless, but then, his Dad is hardly Mr Chuckles, so his guard is well and truly up.
I like Mary as well as Duvall's sister and daughter. I do wish the writers would allow some character growth for both Otto and Jimmy, so Jimmy can be less of a git and Otto can toughen up a bit.
In other news: now that it's been confirmed that Mary merrily engages in some recreational nookie with that devious chap whose name I can't be arsed to learn, perhaps the incest pervs can settle down now.