A marvelous heroine and a delightful book! I would gladly recommend it to anyone who wants a quick and engaging read.
My only complaint was that there's an aspect of the ending that feels rushed, as if it's given short shrift and then hastily moved on from. There's plenty of room for a sequel, and it may be that Okorafor intends to flesh that out in a later book, but as it stands it was definitely a "...That's it?" moment to me.
Still, any book you only have one complaint with is a successful book by any measure!