I've read both Stormlight Archives books and it's a fine epic fantasy on its own. Interesting, well-created world with a lot of odd elements that seem to work together very well (so far, no logical gaps in world creation and no handwaving to explain this or that), multi-dimensional characters that you can relate to. Huge battles, complex magic system, mystery-shrouded history that has to be re-discovered, and the-end-of-the-world-as-we-know-it in the making. On the whole, high entertainment factor.