Seasons 1-4 are purely great television. They are some of the best seasons in tv as a whole. Seasons 5-6 are still pretty good but they noticeably lose the magic seasons 1-4 had. Season 7 is still good.... if you can power through the plot convince and plot holes witch become so noticeable it’s down right frustrating. Season 8 is just bad just soo bad, everything that has been building up for the past 8 years is thrown away. The pacing is absolutely horrible everything is rushed and characters are changed drastically in a matter of seconds... it’s just bad