Just skip the negative reviews and bear in mind one thing: do not expect an action sci-fi movie. This is telling the story of people fighting against oppression. The context is just a marketing excuse to make you more attracted. But this story applies to what we have already seen in the past century. It's basically a modernized sci-fi-ed version of a great rebellion some of our grandfathers' took part to.
Just don't watch it waiting for the monsters and the aliens with super hi-tech in independence-day style fights.
Good movie indeed! If you find it boring at the beginning hold-on, the middle gets more animated and the ending is solid.
People who disliked such an interesting approach to fights versus authoritarism deserve Transformers...