I had borrowed the separate games from a friend of mine's, played through the first installment (Altair as the main AC) and, of course, this was a great leap and improvement. Especially since they took the concept of giving they're "new" assassin, Sir Auditore, a back story for the player to connect with and be attached to (well, for me I fell for Ezio). I even noticed that they gave him an accent that Altair didn't really have in the first game. When I gave my friend's games back, I just had to buy this. It's more convenient and takes up less space on my shelf!