Decent overall

Starts out like a horror game focusing on sneaky pistol and melee action. Then it becomes totally submersed in the whole time aspect and the Time-Manipulating Device that grants the player force-like powers. This felt strange in the same way that Avatar did when it suddenly completely switched focus from the military base and personnel into the whole Avatar thing. From that point on, I started to lose interest.
 
The art style, music, and general atmosphere is overall great. For more detail on this, read other reviews...
 

Other than that, pretty repetitive puzzles and environments generally. There are interesting, worthwhile, and even some funny stuff, but there's also a lot of filler content, and little story. However, the story does get somewhat intriguing during the latter part of the game, so if you can keep yourself from committing suicide during some of the repetitive levels it may be worth playing.
 
Edit: I played this from start to finish straight 9-10 hours or so. I probably would've enjoyed it more with separate sessions.