A continuation of Way of Kings, Words of Radiance picks up where the previous one left off. The quality is similar to the first book and several mysteries are resolved by the end of the book while introducing new ones. In that regard it's not a 'between' novel where nothing noteworthy happens. Which is a good thing.
One thing that did stand out to me is the underlying theme which is similar to that in Mistborn.
In Mistborn this development diminished the impact of the story, but here it remains to be seen for now.
Not much to say. If you liked the first one, you'll like this one.