This book's main issue is its characters. It did not matter what kind of situation these people were thrown into, they were like robots. I might have been able to tolerate the lack of emotion if it wasn't paired with complete stupidity. Bad decision after bad decision, Mia in particular lacks the ability to think her way through any situation. You could argue this is due to her lack of education, but there are some things that happen in this book that are just too obvious to give her the benefit of the doubt.
Aside from the horrible characters, there are entirely too many cliches in this book. The dialogue, the villains, and the plot are all so stereotypical and fake it makes it very hard to lose yourself in the story and believe any of it.
I wish I had more to say about this, or at least something positive, but it really was just not very good. If you are looking for a YA dystopian novel dealing with women's rights, look at Wither by Lauren DeStefano. It is mostly the same idea as The Registry, but the characters are much better and the plot offers additional details and side plots which make the overall book significantly more interesting.