Let's just analyze the story:
Vampire falls in love with human.
Human falls in love with vampire.
Vampire has urge to eat the human.
Vampire doesn't.
Now, this is a decent train of thought for the story. She used a good idea.
But. That's just the basic gist. The skeletal structure, if you will.
I read the book, and I concluded that Stephanie Meyer must be some sort of wizard or such, because she managed to screw it up.
Let's delve down to character synopsis.
Bella:
-The book says she's an outcast, but she INSTANTLY becomes friends with everyone.
-Her dialogue and basic character make her a whiny little bitch, and it's just an ordeal to read about her whining because she loves that pansy, Edward SO much, but how they can't...Blah, blah, blah.
-Second biggest Mary Sue EVER. The author just keeps on adding to her perfectness, while saying "She's flawed, though." Yeah. She might be, but apparently, so were Superman and Chuck Norris. At least they managed to have problems that can't be solved by some sparkly vampire dude.
Edward:
-Immortal, unless torn to shreds and getting every shred burned to cinders. Yeah. Did I mention he has super-speed and super-strength? Well, let's tag a cape on him and call him "Sparklyman".
-Broke all vampire rules. Vampires can't touch water. BROKEN IN BASEBALL SCENE. Full Human Blood Diet? BROKEN IN HUNTING SCENE. Invitation only? FUCKING SMASHED EACH NIGHT. Garlic? SMASHED. Sun? SPARKLY SMASHED. Crucifixes? SMASHED AT THE CULLEN HOUSE (I remember that there was a cross on the wall or something..) Silver? SMASHED LIKE THAT TRUCK'S GRILL (Cars have silver alloys in them, and many metal objects are made of silver ore.)
[Source]
-Biggest Mary Sue EVER. Jesus Christ. He's too damn perfect. Just read through, and focus on Edward's descriptions. How many pages are there that just say how "sexy and hot and omg" he is? About half the book is just fan service.
Everyone Else:
WHO THE FUCK ARE THEY?
Nobody cares about the other people in the story, and frankly, I don't, either.