A lot of what goes into good color is shooting with it in mind, so its hard to fix something thats just totally off the deep end bad. Magic Bullet looks is great, I used that a ton up til recently (now Apple Color is my favorite) The "Looks" are pretty sick and give great results, but they are just like a drag on effect, the manual control is the only thing I like more about Apple's Color. Overall, you cant go wrong with Magic Bullet.
Get Magic Bullet!