I had to take a long break from Oathbringer toward the beginning of this part, which is why it took me as long as it did to finish it. But I did finish it, and I thought I'd try to post here before moving on to part 5.
This part was slow, despite being the shortest so far in this book. I'm not sure how much of that is because I took so long to read it and how much of it is the pacing in the part itself. While it was cool to see Shadesmar, I feel like more time was spent there traveling than needed to be. I think I would rather have been introduced to Shadesmar in an interlude or in a novella like Edgedancer. With characters in so many different places, it felt like we were jumping around a lot, especially when chapters ended on cliffhangers that made me want to know what would happen next with those characters but were followed by a viewpoint change to elsewhere. The chapters with Szeth felt more like what's been in interludes in the past than what's usually in the main parts of the books. And during the Dalinar flashbacks I kind of wanted to just get ahead to where he goes to the Nightwatcher. Overall, this part felt like setup for the final part. There were definitely great moments, but it just didn't draw me in that much.