I am very impressed by the character models and facial animation.Monolith's games since NOLF have always done a really good job with this. Prior Half-Life 2, they even had the best lip-syncing (I would say it is on par with Half-Life 2 in that department).
While the animation might not be as good as HL2's it works bloody well.While the grunts you fight are too faceless for me, the character models from the cutscenes are top notch and equivalent to those of Half-Life 2.