What do you think about Fifty Shades of Grey?

At the beginning of this year I was looking for a good book to read in English. I wanted something interesting and dynamic, something that could keep me glued to the historystory because, reading in other language different that yours native one is a little drained draining, and if the momentum of the reading is bad, probably you'll given up you'll probably give up.
For that reason I was looking for the year's bestsellers and founded this book that was first in most of the Bestsellers lists.
I was learned that this book make made a revolution and everybody was talking about it, so I thought: "That book have has to be very good", but I didn't bother in reading the synopsis or the book's topic. Simply, I found the book and started reading... what a surprise was waiting for me!!!
At first I noticed the writing style was very foolish, seemsed like those girly novels that I was barely been interested in when I was 15.
But when the "action" begun began, I couldn't believed it... That rubbish was the book of the year? And how can "ADULT" people could be interested in that childish novel? To be honest, there are a lot of good erotics novels to waist the time with instead of this one.
I don't have to said say that I could't finish the book.