Great premise... but the author was in such a hurry to publish, and it shows. This poorly edited book could have been so much more. Instead it's sloppily written and so much is compressed into exposition at the expense of dialog and action.
Noah is a great character. But Jake never comes into sharp focus, which is a real problem for believability.
Errors: there are some editing errors. But also some timeline problems. If Noah's mom got pregnant when she was 17, then she couldn't be 23 when he was 7. (She would be 24 or 25.)
(Also, 7 month old babies can't yet do the things the author ascribes to one in the book.)