That game was a huuuuge relief for me. I work in a place where there are several Packers fans, and only one Bills fan. I had to give a presentation to everyone later that week, so my Powerpoint slides all used photos from the game as the background.
It was a solid game from the defense for certain, and that was the difference, I think. But even then, it still took a Jordy drop and a last-minute defensive strip-sack to save the win. Our offense was unwatchable then.