I finished Sleeping Dogs over the weekend and what a great experience. The voice acting was top notch. Really great story. Excellent gameplay. I loved all the little mini-games from Karaoke to safe cracking.
The story was really well done. I felt the pressure of being undercover and getting attached to the gang, and having the confusions with morality. Not an easy thing for a game to accomplish within someone.
I definitely suggest picking this one up if you like good story and GTA style gameplay with much tighter everything.