This is a pretty good thriller - one with a common precept, robot uprising - but one largely well executed. The pacing is fast and the story moves forward relentlessly. This is why it works as a thriller. 

I can't help thinking that this story was just the surface level action of a much deeper, and more interesting story. For example, we didnt get any motivations or perspectives of the machines. Why did they want to revolt? How did they see coexistence u folding? But to have dug into that content would have definitely slowed it down and transformed it into something else.