While it bogs down in places, it's an amazingly well-crafted work. Some elements developed in the first book see their fruition in the last one--which made me glad that I read all of them in one go as I definitely noticed things that I had not noticed before. The story follows the stories of many different characters, but focuses primarily on three young men and five young women whose destinies intertwine during a time of apocalypse.
It has everything one could want from an epic fantasy: evil forces, a complex magic system, mythical creature, exotic cultures, and heroes facing amazing odds. While the final book is basically one long battle (like the third Hobbit movie), it provides a satisfying conclusion to the intricate tale.
I have read that Amazon has commissioned a television series that will premiere next year. I hope it follows along the lines of Game of Thrones (although with perhaps less graphic shock value) rather than the Sword of Truth (although the TV series was still entertaining). I'm just glad that they're not trying to cram it into a movie.