I'll admit, Eric was a bit whiny at times but you have to remember he's also a teenager. If you have a problem with teen angst and him whinnying, then I must ask you why you are even bothering to pick up a book with teenagers as the MCs?
Anyway, I felt really bad for Eric. I mean, no one listened to him when he told them something was wrong in the first book and now it's come to bite them in their asses. I loved seeing Eric finally being a part of everything, though. Gives him a chance to see where the other superheroes and supervillains are coming from and go through. However, I wanted to beat the shit out of Peter.
I was a bit confused through some of the book because I kept asking questions about how this happened and why and all that but everything got explained in it's own time so by the end of the story all my questions were satisfied.
All in all, a great book. It may not seem like it but it was a fast read that had me glued to the pages. Definitely recommended. :)