This type of game is rather common in Japan, except instead of 3d model and interactive play, they have drawings and dialog choice. Of course, there are also variations in between, some with more or less gameplay vs story progression.
Heavy Rain is like an interactive movie/book/game or whatever. It is refreshing and different from the constant normal game we have. It's almost like motion-sensor type of game, anyone can play it. The only thing is, will you enjoy this type of fun or not.