I didn't really like Syndicate at all. The new gang territories were new and fun. It was also great to have a DLC-like event where you get to experience WW2. But the combat mechanics were rubbish, fighting was boring and repetitive and there was no backstory or real link to the other Assassin's Creed games. The protagonists were fun to play as and their competitiveness with each other was fun to watch, but other than that, it was boring. The only reason I played to the end (I stopped playing for ages because I lost interest) was because I payed for it. As soon as I finished the cliché ending (overpowered bad guy with supernatural artifact), I immediately stopped playing and have never played it again.