The main thing that surprised me was that Courteth got magically ... attacked? ... by Topaz and at no point thought, "Hey, there's a possibility he might be a Sho Del," especially with all the hysteria at the time. I also thought Jerick's arc was too scattered, and none of the Parts bore any resemblance to each other.
That said, I had an absolute blast reading it, even if it wasn't great. I also loved Frost and can't wait to see more of him!