Sorely Lacking in the "Fun" Department
It's easy to see why so many people like Indigo Prophecy; It's the most cinematic experience to be had with a video game. With that said, how fun would it be watching a movie while pressing button commands like pumping the L and R buttons while the dude on-screen does push-ups? How about remembering walking through a hallway while you match analog stick movements? It's about as fun as it sounds.
You control three characters in the game. One is Lucas Kane, who committed a murder that he had no control over, and two cops trying to track him down named Carla and Tyler. Lucas's gameplay sessions are fun roughly half the time, but the other parts are torture. This means only a third of the game is almost solid. The story gets a lot of praise, and that might be enough to keep people going, but it's only good in comparison to other games. I'd recommend just watching a movie or reading a book if you're looking for a passive way to experience a story. There's also some weird issue where the controls don't adjust to new camera angles. So you'll be running along to the next room and your controls will suddenly be backwards. Did they really not have time to fix this before the game was released?
Indigo Prophecy succeeds in delivering a game the pushes the cinematic border, but at what cost? At some point, we have to ask ourselves how much we're willing to sacrifice in the spirit of breaking new ground. I'm all for trying new things, but let's not forget the crucial elements that make games fun to play.