Kelly Sue DeConnick mixes a 60's prison movie with a sci-fi dystopia, adds a refreshing amount of intersectional feminism, and removes enough fucks until Harlan Ellison would applaud. I love how it ends with discussion questions, and would love even more to observe it inflicted as a heavy dose of Wake-The-Hell-Up on a complacent college gender studies class. 
 It's worth buying just for issue #3 alone. Had DeConnick had wrote issue #3 as a one-shot and never written the rest of the series, we'd still be talking about it years later.