I used to love them during the Ezio days but after that they were pretty lackluster with Black Flag being the exception. I thought that game was amazing. After Unity and Syndicate I wasn't sure I was going to invest anytime in the series anymore. But all the massive changes to game play and open world design they touted for Origins pulled me in and I'm glad. It was a good game. It feels disjointed story wise though as there's just so much to do in side quests and exploration so that aspect I wish they could streamline more. That and most of the missions were boring and the completely unimportant quest givers are generally all really annoying.