Oh Dexter has been horrible since season 5. The writing is so bad, there are so many ignored details in the plotting, and it's just plain boring to watch Dexter "escape" from getting caught over and over and over.
Such a shame. I'll still watch it to the end but the brilliance of seasons 1, 2, and 4 is long one.
Also, I honestly saw "the twist" about a certain character coming from the season 6 premiere. They dragged that out forever as if it wasn't painfully obvious. The main villain was laughably bad, too. Just horrible.