Just think if X-Men and Heroes (the first season of course, which was the best) met and had a story baby, this is what it would probably be.
It's a good start to the chronicles. You get a sound introduction to the characters and their talents, who's possibly a bad guy and who's good. And there is an excellent cliffhanger at the end.
Now, even though I am looking forward to the next book, I did have some problems with this one. I know average teenagers aren't very articulate or may not have a firm grasp on the English language, but I think some of the "likes" and "totallys" could have been left out. It started to annoy me. And it might be my more conservative side, but the foul language started to get under my skin, as well. One reason I read YA fiction is so that I don't have to deal with all the foul mouths that go along with a lot of more "adult" type books. And this one takes the cake on swearing so far on most of the YA books I've read. I hope that it is toned down more in the next book.
I would have to give it a solid 4/5 though. We'll see if the next one can hold up to it.