I did enjoy the book. It has a cyberpunk/shadowrun feel, that immediately made me grin. I loved the fact that Cinder was a mechanic, as well as a cyborg. I enjoyed the addition of the plague, and the world building. I loved the asian flavour. I know most reviewers have sniffed at the 'Asian-Lite' cultural build, but it made sense to me. Why would a futuristic, post WW4 Asia, be the same as it is now?
The only issues I had, were with Cinder herself. She's impulsive to the point of stupidity. When given clear instructions on what not to do, she does the opposite. Half of the plot is generated by her idiocy, and inability to follow simple warnings. That's not counting the arrival at a ball in a soaking wet, muddy dress because... reasons...
Had the character thought a little, and had she shown some ounce of sense, this would have been a five star book, but unfortunately the main character drops it down to 4.