Despite being quite entertaining, it was quite bland and forgettable. You'd think that wouldn't be the case with a FPS shooter whose game play centers around bending time to your will, but unfortunately it is. However, it was not only bland, it was also a bit of a copycat. The main character is a "silent type" hero who's a physicist that a lot of the time dukes it out in a repressed modern city where the antagonistic ruler appears on huge monitors throughout the city babbling about various stuff.
Sound familiar much?
Unlike the struggles of Gordon Freeman, the story and characters here were completely boring and uninteresting. Hell, they're practically nonexistent. Even though I played through the entire game sober ( which wasn't the case with games such as Deus Ex: Human Revolution, The Elder Scrolls IV: Oblivion or Fable II) I had no idea who the antagonistic was or what he was after. There wasn't a single character in the entire game I can with clear conscious call an actual character. Not even the playable protagonist. That can't simply be filed under lazy writing. No, it's so much more than that. That's either incompetence or the creators just didn't care. Personally, I believe it's the latter, because there didn't even seem to be any attempt at it. They only seemed to care about making a fast paced shooter with cool time altering abilities. And in that regard they... somewhat succeeded. I say somewhat because while it was pretty entertaining, I can't help but feel that they could have done so much more with their set up. For instance some more difficult puzzles or battles which would require some strategic thinking. Unfortunately, there wasn't any of that in this game, resulting in an overall mediocre experience.
If you're interested in this game, then my advice is to leave your brain at the door and just enjoy blasting some soldiers in slow motion or completely frozen time.