Although it's far from being a bad game, it got hurt by Ubisoft releasing an AC game every year for years in a row. The world building is fantastic, Victorian London is an incredible scenery and the quests are good enough.
Nice story, mechanics and graphics. The small choices you can make throughout the game, like figuring out a way to save that soldier made my like the game even more.
Got a little bored a couple of times, but the different worlds and cities were crafted with attention to detail and it was quite enjoyable most of the time.