Yep, David Cage have show that there is a solid market (2-5M) for this type of experience as long as it is well made and well sparsed.
I personally think this is a well made game. Of course, the formula still can be improved. Two of my favorite parts were the Eden Club and the Evidence Room puzzles. I think with more puzzles scattered around, and the substituion of a few QTE´s scenes for action/combat scenes, this game would be perfect.