Unseelie was spectacular! Seelie and Isolde are great main characters; I loved their devotion to each other and the way their strengths complemented each other. Seelie is an autistic changeling, and I could definitely see the parallels between how autistic people are treated in our world and how changelings are treated in Seelie's world. The magic system was really interesting, also; I loved seeing Seelie figure out how to use her magic and learn that she is capable of far more than she thought. The two side characters, Raze and Olani, were great, too. I'm hoping for a potential romance between Isolde and Olani in the next book!
I wasn't sure if Unseelie was meant to be a standalone when I started reading, but Housman left just enough loose ends to set up for a sequel!