I just finished a book called Twilight by Stephenie Meyer. It was her first book and although it started out poorly written, it evolved into something magnificent.
If you read the synopsis, it sounds like one of those terrible ridiculous teenage books that are all written the same and have proposterous plot lines that make you want to throw up.
But it isn't.
500 and something pages and I made it through in two days. It's not that the writing is so advanced, rather that the author pulls you so deeply into the story that it's impossible not to experience the emotions of all of the characters. I don't think I've ever been so involved in a story.
Afterwards, I was emotionally drained and unresponsive/antisocial because it somehow took so much out of me. You will find yourself wanting desperately to go back into that world.