I do not hate it neither do I love it, there are parts that really need to be fixed but you did it, it maybe a sick excuse of a movie in some ways but to be honest this series should not have been turned into a movie series. It is just too different than the other books.
Yes the movie is not exactly and to be honest - remotely like the book. But the feelings, the personalities, the attitudes; they all are the same. There could be parts spoken better, enacted better but at the end of the day it's a different movie, yet at the same time a very common one. The book that was written by Anna Todd, is what you need to read to get in depth with the characters (read the whole damn series while you are at it), but the movie just sums it all up. You cannot expect (well maybe a little) a movie that is amazing, due to the story of Tessa and Hardin. It could be better, but it is purely exotic already the way it is.
I lastly finish off by saying, 'Some books cannot be converted into movies, so take what you are given or make the effort to read the original, the Book.'