well show has made with really good concept. But it has 8 seasons and they come up with different plot in every new season 24 episodes may be boring but i feel like they just keep repeating things not exactly but you find same situation every other season. i can't go in details but person who have watched knows what i mean. Also one thing that when they kill somebody they do not do it in a good way. Like in shows like homeland and breaking bad and walking dead when hero kills someone i literally jumps off my chair and even fingers crossed. So i wasn't that excited while watching this series. Last but not least they really fail to make good ambiance.