I like the fact that shes flawed, she isnt shiny shiny perfect as all these cheesy pop stars try to be, she has her faults, but she is a very talented singer and that's all matters, she brings her life experiences to her songs, raw emotion in some of her songs, especially Love Is A Loosing Game.
And everyone who slags off her voice, at least she's unique and different, maybe not your style, thats fair enough, but I happen to like it lol.