Tweaked my nose? What are you talking about? Dexter is a show that had some good moments and even seasons, but overall it was a a bad show - the horrible far outweighed the great.
I "have no basis to judge anything related to it"?!? I watch TV, and have a reasonable critical mind, so that gives me all the "basis" I need. However, I read the first Dexter novel, which was decent, but the show obviously didn't follow the novel exactly. No show should follow it's source material to the letter. Look at The Walking Dead, which does follow major plot points of the graphic novel, but takes liberties where they think it's necessary. It remains to be seen if The Walking Dead falls into the same trap that Dexter did, but for now, it's at least as good as the first three season of Dexter.