The Good: The premise of the story is great, perhaps not wholly original but definitely interesting and a good idea for a read. The characters are engaging and likable, and really liked how they became "something else" during the story.
The dramatic and drastic changes of the appearance, and even to an extent the personalities, of both Aadi and Eirena was interesting. They were vastly different beings, each changing as to be like something that was nearby them when the changes began on site. Giving each different powers, strengths, and challenges.
As the antagonist the corporation has much potential to be either wholly evil or only in part. With the parents being employees, all of the kids have the potential for finding more help from the inside and it begs the question of whose parents knew and didn't care and if or when or even how that aspect will play out for them.


The Bad: The synopsis on the back of the book was a bit too descriptive for me. It felt a little bit like a 10-year-old going "oh and then..." which I didn't find at all helpful for me to be enthusiastic about picking the book up.
I also got confused a little way into the book, and this may be because I sat down and read the entire book in one sitting. I had a bit of a time getting into the meat of the story, but once I got a few chapters in - perhaps 20 - I found myself interested but confused by the events. The time line, while established in the beginning of the book, is never clear on how much time is passing or has passed, but jumps as if they have been doing activities we haven't seen or heard about (or even slightly referred to).
The fighting sequences were too detailed for me as well. I found myself lost when trying to picture whose arm went where and how they were standing. It was hard to follow and I felt it distracted, rather than added, to the whole story.
Lastly, the beginning of the book focuses on all of the characters to a great degree and then only on Aadi and Eirena. Quite a bit of the story is from Aadi's perspective (as a third person, but relative to Aadi) but we spend a lot of time learning about everyone and everything. Then the focus changes to solely Aadi and Eirena and completely excludes the rest, which we had spent so much time learning about. I felt the change was very abrupt and a little disjointed from everything that had gone on previously. I found myself let-down by the total change of venue, from a story about a team to the story about just Aadi and Eirena and wished for either a more direct story about Aadi and Eirena or broader one to stay focused on the team as a whole.

Overall: I liked the book, and enjoyed reading it. I tried not to be overly critical of attitudes and thoughts the characters felt and had because this book is meant for a younger audience and their view on things is much different than my own. And while I am not the book's intended audience, I found I liked the characters and the story and am interested to find out what happens to them in the future.