Sorry for bumping this thread, but I'm late to the Assassin's Creed party.
I'm really enjoying the game; the fact that Altair is so insanely good doesn't really bother me, because it's fun to be an absolute badass. The only thing that's annoying are the endless investigations and, because I'm masochistic, the flag hunts. But the story is cool and the free running is just awesome. I can't wait to play Creed 2 once I finish this one!