Well, one wouldn't expect it to be 100% faithful, but some of the changes, especially regarding the characterization of some people (Al), I don't like. I think Father is a much, much better villain than the one in the anime and I don't appreciate them making me feel sorry for Lust, who I hate in the manga. They really transformed her into an entirely different character. I often have fights with my friends (saw the anime, haven't read the manga) because they love her and don't understand where I'm coming from. I just liek the manga much more.