The only Origins DLC worth getting. It's a nearly 1 to 1 retelling of Batman the Animated Series' version. The cool thing is in some ways it's actually enhanced, which seems like blasphemy, I know. I specifically think the in-game detective system that reveals what happened is a much more compelling way of telling this story than Batman looking at some surprisingly well edited CCTV footage in a security closet. The acting is top notch and presentation is great. The only real complaint I have with it is the same as Origins as a whole; it's completely uninspired and just kind of goes through the motions. Now, if you're brand new to Batman, I can conceivably comprehend you really REALLY enjoying Origins and this DLC because it would all be new and fresh; Batman is cool and there's some awesome stories here. Sure, those stories are not new here, but if it's your first exposure to them, Origins does a really good job with them.
Anyways, I recommend it, especially if it's new to you. If it isn't, it's still well put together and fun to play through, even if you know everything that's going to happen.