It's a bore! Just a Bore! ("Gigi")
From the first episode of "Dexter", I was hooked. Season after season went by and the show was almost always excellent - there was one wobbly year, but at least it tried to be different. However, the villain was too weak. As we all know, a hero is only as good as the villain is evil. Then came the last season...THUD! Michael C. Hall slept walked through most of it, probably grateful that it was at last coming to an end, and Deb became just a prop instead of the complex person she had become. Dexter, who killed people who had managed to "get away with it", had been our hero, and strangely enough, it had worked as a concept. But that was because he usually had diabolical villains to play off. Here, he is both hero and villain with a net result of indifference for the audience. You can't cheer for him; you don't want to boo him off the screen..well, until this season. Surely there was a better ending possible. In fact, almost anything else would have been a better ending.
In the last season we got a Dexter who was, as children would say, a "suck". The self-pity was cloying, the main character's thinking level descended to shallows unimagineable before. The show sank.
I bought it so that I would have the entire season. But I realize now that my decision was wrong-headed as I will never be able to watch this season without it deminishing the impact of every other season that had gone before it.