I think that many of the reviews below have already summed this movie up quite well. It's a standard revenge movie, but with a sci-fi twist and some incredibly impressive fight scenes. It's well-paced, well-acted, has a solid script, and the plot is more interesting and complicated than you might think from seeing the trailers alone.
One other thing I really liked about it was the director's vision of the near future. With a few little exceptions (like how a computer chip in your neck can make you defy physics and stand up without bending any limb) the world here is very believable and depicted in such a way that was visually appealing without going too far as to make it look too flashy to be realistic.
Don't let the fact that this was made by someone who directed one of the Insidious movies bother you either. This is wayyyyyy better than any of those movies. Director/writer Leigh Whannell has really found his footing here and delivered a movie that's highly entertaining and doesn't pull any punches.
One other thing I really liked about it was the director's vision of the near future. With a few little exceptions (like how a computer chip in your neck can make you defy physics and stand up without bending any limb) the world here is very believable and depicted in such a way that was visually appealing without going too far as to make it look too flashy to be realistic.
Don't let the fact that this was made by someone who directed one of the Insidious movies bother you either. This is wayyyyyy better than any of those movies. Director/writer Leigh Whannell has really found his footing here and delivered a movie that's highly entertaining and doesn't pull any punches.