I downloaded the DLC for Prince of Persia on thursday and beat it on Friday. If you want the short of it, I don't think it is worth the money. If you need a little more detail I'll list it below.

Good:

The DLC is some of the hardest platforming sections in the game. For people who though the main story was a little too easy, this is the last stage they were looking for. Its fun to play through and adds a nice new power for Elika, which might not change the game much, but is a plesent visual treat. There are also some nice battles to fight through as the prince. Like the final fights in the game, the ones in the DLC can be quite challenging. It adds some extra replayability with added achievements and things to find that are hard to get on the first run through.

Bad:

Its short. Just about when I was really getting into it, it starting winding down. I think the total time I spent in it was about two hours and most of that was in one section where I had trouble figuring out what to do. Also, the Epilogue adds nothing to the story. The whole reason I downloaded it was to get some sort of conclusion and a big boss fight. I didn't get either. What is there is presented decently, but is completely pointless. It seems like the objective of the DLC is to take you from the unsatisfying conclusion of the game to an even more unsatisfying conclusion and have that somehow convince you to buy the sequel. That honestly makes me somewhat angry.

Conclusion:

Ubisoft is getting in a bad habbit of not ending their games and strong handing story fans into a sequel. They've done it with Rainbow Six: Vegas, they did it with Assassain's Creed, and now they've done it with Prince of Persia. While the gameplay in the DLC is pretty fun while it lasts, the main reason (or at least my main reason) for downloading it was for the story. It fails so epicly in that regard that it is impossible to reccomend. It almost makes me want to boycot Ubisoft, until they learn how to make a game that actually ends. In fact, I think I may do that.