I started watching Castle Rock. It's ok, acting is fine, plot is ok. But holy shit, some of the dialog is so bad. Every few minutes there are a few lines that are so stupid and awkward. Breaks you right out of the thing.
Thing about Stephen King, is that he is kind of a terrible writer. And not very original or clever with plot. But his genius is his characters. His books are 2/3rds character development. Almost rambling, almost irrelevant, almost mundane backstory with characters weaving in and out of each other's lives before the plot ever kicks in. He paints peoples lives and pulls the reader in until all the sudden King has populated a town with people you know. And it doesn't matter how dumb or silly the plot is or how ham fisted he is with themes or how robotic his dialog is. Cause by then you care about the characters.
Its why movies based on his stuff generally suck. The movies skip straight to the plot, the weakest part of King's stuff. Laying out a sprawling series was the perfect chance to finally get it right and build a town populated with people where you know their entire backstory from childhood. But nope. This show falls into the same trap as the movies.