It's a hell of an install, but a great game so far.
It will be interesting to see how the show influences the game.
Had a couple of occasions when some randoms turned up while I was doing a side mission and the added firepower helped to polish off the opposition. Will be interesting to see if large groups will be needed to take down the larger foes.
On the downside - navigating the menus can be a pain as some of them aren't very intuitive and they don't always give you a "back" option. So you end up exiting out and then re-entering the menus quite a lot.
Here's hoping clan "DS" kicks ass