It's a solid enough standalone title with couple noticible changes to the game to set it apart from the AC2 but with some drawbacks. A lot of the missions are just tailing a person for couple of minutes which seem a lot more boring when compared to the grand, fun and divirse missions from the AC2. The story is enough to make me feel satisfied with the existence of the game + it's quite shorter than other mainline titles. It's worth to play if you care about the overarching story of the AC saga but not enough to play it for the gameplay reasons, if you want to play AC2 like game just play AC2.