Even if you enjoyed the gameplay loop of the main game, I would advise you to wait for a few months before starting this DLC as it's basically more of the same. It adds a whole new island to explore, a couple of new abilities, and a few new interactive activities like archer challenges, wooden sword tournaments, and flute playing. Unfortunately, the plot doesn't add anything new despite its premise of looking back at Jin's past and the ambiguities of his father. It felt like they tried a little harder with cinematics, though.