They weren't good. None of the plotlines are good. The IK backstory ruined everything funny about his character.>S1>Crazy Pathetic Evil Old Wizard >S4>Quirky old man who dindu nuffin>Not even mentioning how badly they fucked Marcy's character
The entire story was completely uninteresting and only served to ruin the mystique of the world. The show had so many fun interesting environments and monsters and the best they came up with was zombies in a generic post apocalyptic setting.
And it only gets worse the more they reveal.
The sooner this show ends the sooner it stops spitting on the corpse of earlyAT.