Starsight was a bit of a mixed bag. While the start and the last couple parts of the book were great, the pace was just too slow during the middle for me. I liked how the Superiority was developed and explored, however I think this book could have been better if some of these parts would have been shorter. Also, the ending felt abrupt. I get what Sanderson was trying to set-up, but it felt like the ending just came out of the blue. This isn't to say that the book was bad - In fact, I liked many elements of it, such as the worldbuilding, the new characters, and the classic, crazy Sanderlanche. However, it could have been better and it did feel like a bit of a disappointment after Skyward.

Edit: After some time letting the book marinate in my mind, I think that I was a bit harsh in this review. While I still stand with my point about the pacing, I've mostly overcome my feelings about the ending. This book wasn't a disappointment, it just wasn't on the same level as Skyward for me.