If you like the original game and want to know the story afterwards, I strongly recommend this DLC!

Yes you cannot carry all the achievement from previous save to the DLC, but you can still easily get most items in short time. Also the preset start will not give you much challenge but at the right spot that the enemies will not be too boring.

The main point of this DLC is to experience the story line, so please also expect there is almost no new gameplay mechanics.

If you like the original game and want to know the story afterwards, I strongly recommend this DLC! Yes you cannot carry all the achievement from previous save to the DLC, but you can still easily get most items in short time. Also the preset start will not give you much challenge but at the right spot that the enemies will not be too boring. The main point of this DLC is to experience the story line, so please also expect there is almost no new gameplay mechanics.