I watched s1 and thought it was ok. A little too teen angsty for me, but the introduction to the universe was enough to get me to start the 1st book. A year and a half later, and 14 books in ( I'm halfway through the very last one) and I'm absolutely floored.

The whole series is nothing short of epic; the world building, magic system, character arcs, the story. One of my favorite reads so far, and certainly my most favorite in the fantasy genre.