This book was pretty good. Diana Urban sets up really hooking opening chapters and a great stakes. I think that the specifics of technology in this one will be a bit dating eventually, but it's all very current right now. I think this book suffers from one thing I have seen in her previous books, where there is a reveal to the reader earlier than the MC realizes it which brings the thrills/stakes down for a bit. However, this book has some excellent extra punches that bring it all back together. While it is a bit lengthy (there is filler of her going back and forth with normal friend stuff while waiting for the next action sequence), the plot is interesting and the story itself is well-paced.