I can't help but compare this with the mortal instruments series. I am left with the same feeling as when finishing City of Bones. I am left with so many questions, and I look forward to reading the next book for the answers. 
 Firstly, the mortal instruments were written from a variety of views, and so you have an entire cast of protagonists. In Clockwork Angel, although a few times you are delving into alternate characters, the point of view is mostly that of Tessa. I feel much more in the dark with this series. The views into the secondary characters are simply that. Secondary. Mere glimpses into character and future plot lines. It does add to the mystery of the book, however. 
 The characters are very similar to those in the mortal instruments. Although this means they are far from unique, I do feel as though I know them already. There is no adjustment period to allow myself to get into the book. I'm already there. 
 I loved that Clare explains some of the questions I'm sure we've all been asking, such as, "Why don't they just pick up a gun, already?!" Clare has also presented me with an AHA! moment, involving Camille's character in City of Fallen Angels (I won't spill the beans, in case you haven't read the book, or haven't had the same revelation). 
 4.4 stars, not quite enough to roll it up to 5. I have high expectations for book 2!