I dislike her in part 1, and only start to like her in part two. Most of my dislike come from her pathetic obsession for sasuke. But part 2 sakura is not as obsessed as before, so I change my opinion about her. not to mention I start to see her admirable personalities in part 2, such as her selflessness, her strength, and her caring attitude for naruto.
I guess some haters can't see that she has changed. She is not as useless and weak as before, not as *****y as before, and (fortunately) not as obsessed to sasuke as before.