Summary: Good DLC for Enemy Unknown since it provides a FEW extra missions and character mods. Would be nicer if there were more missions, and if the missions didn't require a restart of the game with new rookie characters.
Summary: It just doesn't add enough to the main campaign or combat to justify $30, much less $15. Personally I feel as if they should've started with a brand new campaign and took it from there, this is just more of the same with some added fluff.
Summary: Nothing more to say - you buy it because you think it's going continue the story, but it's just a remake. Better than it was before by some small degree, but if you knew then what you know by the end - would you still bother?