Season 1 great
Season 2 good
Season 3 OK
Season 4 Ehhh
It seems after season 1 they ran out of good story ideas/plot twists… and wen for weird psychological accents to the story lines.
They knew what they were doing when they quit after season 4.
Good Decision.
Too bad though. Billy is a threat character and Billy is great at playing him.
Goes to show, Hollywood is dying for good writers.