It was annoyingly repetitive. I got sick of it after the first 3,4 missions, never finished it. The later two games had a lot more variety and substance to it.
Fucking awesome. The first one was meh, but the last two were awesome. I'm curious to see how they'll throw in both Ezio and Altair in the same game. Not like there's much difference playing wise, but I'm curious how the story will go on.