It's not dense writing? You have to be kidding me. It's written in some hybrid Old English fantasy style that is intentionally hard to read. I would rather read Tolstoy than this which is saying a lot.
The books are a fairly easy read. They aren't Dresden Files easy, but compared to something like Moby Dick those books are like reading the menu at McDonald's.
Finish the first book then watch the first season (the first season follows the first book very closely). After that, decide on if you want to continue the books or not.