I have been totally addicted to this series of books since starting the first one. I was deeply enthralled with the concept of nanites and what they could do to help a person’s body in numerous ways. it was so fascinating. listen to these books and to hear a lot of my own ideas come to life through the author of these books, which, by the way, is awesome. if you’re looking for a very entertaining, very action-packed and even fun-filled series and booked, I would highly recommend this. I’m just sad that I’ve reached the end of the third book. now it’s off to find something new to listen to.