Too much time taken to make too little. For the serious fans however, a welcome snack.
The new classes add replay value for people who've run through DSII a LOT and are desperate for more. They are truly original, but without enough new storyline content, it won't be enough to draw you in for a truly NEW experience. As a mod, or an episode I of a new game, this would work. As a long awaited expansion this falls short.
That said, there is an audience for this, and for that audience I would highly reccomend it. I don't mean to sound snide when I say that some people wanted more, and that two new classes = two new playthroughs in which case the extra content is icing on te cake. If you're one of those people, fantastic. For the rest of us, it's a hard call, because although the technical aspects of the game hold up well, it falls terribly short on value. This score is all about "tilt".