If you're into AC then it's totally worth buying. There are issues, sure, but it's completely possible to focus on the things you like to do and get a lot of satisfaction from it. It's not a bad game by ANY means...it just does a lot of really curious things if you really start to dig into it's mechanics.
But overall, still a solid buy for AC fans and a definite rent at least for newcomers. The core stuff (running, fighting, assassinations) still works great.
I couldn't disagree wit u any more. This game is so much fun and there is so so much to do. And the games like checkers all have explanations how to play them i dunno wat ur talkin about. And ive only seen a few minor glitches in the 15 hours ive played so far. But this game is huge and pushing the system to the limits. What do u expect it to be perfect.