This was awesome!!!It had so many great elements being combined to create one fantastic read.With cyborgs, castes, princes,virus and aliens as well as a twisted fairy tale plot! 
 Basically Cinder lives with her step mom(evil) and stepsisters. Cinder was involved in a terrible accident about six years ago where she lost her left arm ad leg.The only way she was saved was by becoming a cyborge.She lives in New Beiging and she is a mechanic. There is a deadly virus and its losely based on the classic Cinderella story. 
 I do not want to give further details because you must read it in order to grasp the awesomeness... I felt as if I were in the story, so many feeings.