I'll be honest, on the whole, I was underwhelmed. But I think that can happen when you spend this long building something up in your head. However, there were a few chapters that literally had me in tears:
Teft. Brandon's description of addiction and Teft's situation was perfect. Teft's self-loathing (especially and even after his spren wanted to bond) was as close to the real thing as I've ever experienced externally.
Shallan and Wit. The back and forth between the two that led to her taking the first step in owning her pain was so good. Such a good conversation. And of course Witn had clever comments.
Honorable mentions are Dalinar finally not hiding from his pain and past, Elhokar psyching up to be a Radiant, and Kaladin's breakdown after Kholinar.