It's a good game, but clunky controls ruin the experience.
Story: The story is quite good, you play as a undercover cop Wei Shen who has to infiltrate the Sun On Yee. There are both police and Sun on Yee missions, and alsole sidemissions, activities(karaoke singing, races etc.) and lots of collectibles.
Graphics: The graphics are amazing, Hong Kong is just beautiful, a very detailed living, breathing city.The characters on the other hand do look kind of stiff, but thats no big deal.The effects(shadows,reflections etc.) - AMAZING.
Music and Sounds: The music is just right, voice acting is perfect, sound effects are good too.
Gameplay: The gameplay is just perfect, here the combat system is the top part of the game, it is similar to the one in the Batman Arkham games, the driving is arcade-ish(in a good way), there is alsole parkour, leaping from car to car, and lots of little detailes(using the toilet, sleeping, eating etc.)Gun play is alsole good, featuring bullet time as in Max Payne 3.
Controls: Man are they awful.Many times the mouse would freez, lagging at one point made me crash my car on few missions and the countering in fights will let you down some times, other than that the gameplay is fluid.
Overal its a solid game, better than GTA IV, better than Saints Row The Third
and way better than the previous ones.The only problem are the controls and some minor bugs.