Very good campaign. Gears was always at its worst when it was taking itself too seriously so having the main characters a bit more aware that people with no necks chainsawing monsters in half is not terribly realistic works a lot better. PC port works well, too - being able to aim with a mouse makes the enemy feel a lot less bullet-spongy to me than the 360 games, massively speeding up what felt a bit stodgy before.