At first you will think you are watching a fantasy drama for adults, but not far into season one you will realize this was written for 12 to 13 year old girls. Sexual attraction is handled very chastely, no one drinks in excess if at all, and our main character is struggling with issues usually experienced by teens, not twenty-somethings. She is the best, the brightest, most courageous person anyone has ever seen, plus very innocent, but that whole package is overdone so much so, it becomes obvious this is a tween girl's fantasy. She is going to be given a full professorship in the history dept at Oxford University at 23 or so years old because she's so brilliant. Really? She simply doesn't have enough life experience, and proves it each episode. That said, this is not a lighthearted silly show like many written for younger viewers.
I understand from other reviews here that it follows closely to the books, so I can only assume they are probably written for the tween fan group. As an experienced adult, it becomes hard to watch adults a thousand years or more old struggle to handle life, and it necomes harder and harder to sispend reality for the sake of enjoying the show.
All that said, the sets, most of the actors and production quality are good. I will continue to watch unless it jumps the shark even further.
