It depends on your definition of good game. It definitely created a new sensation and broke sales records. It brought even the most casual players into multiplayer gaming. It is not however a very creative, or innovative game. Critics (besides the paid ones) don't really care, it's not impressive. The stories are forgettable and cliche, and the gameplay isn't anything new compared to other FPSs. It does however have an addictive quality to its multiplayer, one that keeps people coming back. If it's the only game they play all year, they're happy. It's $60 a year. It's sounds widely hated because gamers who spend a lot of time playing all kinds of games, not just the odd shooter, are the vocal group.