Story blows you away. Never once did I want to send it back because I thought it was too long, or too boring, keeps you constantly interested in it and it has nice little actions that semi-effect the rest of the story. The graphics were decent for a shooter, and the gameplay style was simple and easy to maneuver. Pros- story, ease of gameplay, interactive, nice variety of weapons. Cons- too short.
A compelling experience sadly overshadowed by (minimal spoilers) my anticipation/realization of the "gotcha" moments. In other words I was not in the mindset the developers wanted in order to convey the "inner monster," "descent," and "war is bad" themes directly, though I could still look at it objectively with favor and awe in the quality of execution despite not having been fully immersed. You owe it to yourself to play it through to completion, keeping in mind that the mundane shooting is a conscious design choice. That said, I wish gameplay could have found an ambitious way to be fun while at the same time coherent with a negative portrayal of war, but that seems to be an oxymoron. The point being, make it through all the way ignoring the limitations of thematic inconsistencies brought by playing a shooting game and view it as an experience and inward reflection, rather than entertainment. Pay attention to the environment, dialogue, and loading screens for added wow come the conclusion.