This is the most teenager overrated crap I've ever read. And I am saying this as a 17 year old girl that usually likes best sellers.
The cover says it is one of the best suspense novel ever written. Readers say it's adventure. Honestly, all I saw was a cheesy romance, with really-not-deep characters. All Edward can do (besides everything, because he is a Gary Stu) is laugh. An ironical laugh, a cute laugh, that smile that Bella loves so much because OMG, HE'S SO FREAKING PERCFECT! C'mon, it's pathetic. And, of course, the dark prince charming fell in love with a Mary Sue, who were absolutely nothing back in Phoenix but magically were transformed into the better girl in Washington State, the one which every single guy in town wants, grawr.
Not to mention how crappy the vampire creation is in this. Or even how in a hundred years, no one noticed the Cullens were vampires, but, a few weeks after being in town, Bella discovers it. She's so smart!!!
The only good part of the book is at the end, in less than hundred pages os its 400. FINALLY, THE ADVENTURE! That ended up being really predictable and BORING. But, at least, it revealed the only character in the whole plot who's worth knowing about: Alice.
Meyer did a not-so-great work of fanfiction, honestly. At least, it is what it looks like. Her descriptions about Washington State are great and her descriptions of people reactions are terrible. She would be better writing a book about reality. Or not writing at all.
So, I'd say, if you're looking for teenage cheesy drama, go read it. If you're looking for something that you can curse after you read, go read it. I don't see why anyone would read if it wasn't for one of those things. After all, the "greatest teenager suspence of all times" sucks.