The whole time-changing thing of Singularity reminds me of the Half Life 2 Gravity Gun, but using time instead of just physics. I remember enjoying the physics puzzles of HL2 at first, but at some point at the middle of the game I just wanted to move foward instead of pilling boxes or aligning planks.

These nifty mechanics may look good on trailers, but these, alone, never sell a game for me. However, if for any reason you are on a shortage of shooters to play, give it a spin.