Better than the average tv show, but that's not saying much. It's clear very early on, I'd say second or third season, the writers had no clue or plan where the show was going. It became similar to something like svu, violence for shock value and not for plot value. Plotlines and characters come in and out with little explanation, character motivations and actions seem outright stupid, and from season to season subtext and narrative change on a dime. Like I wrote its better than a lot of tv, but that isn't saying much.