I like Glitches. 
 ... So, I finally met Cinder's stepfather. You do know what happened to him in the fairy tale, right? :( 
 Glitches showed how Cinder came into her adoptive family. It also narrated Cinder's initial struggle over her being a cyborg. And she discovered her gift on tinkering at this time. 
 This e-novella has a sad tone. But to her stepmom's credit, Adri was not at all bad at the start. She really loved Cinder's stepdad. And it was love at first sight for Peony on Cinder. I liked this part, such a simple take on one's kindness towards someone who lost everything.