I understand the 5 stars reviews as well as the 1 star ones.
It really depends on expectation.
Same reason the 3rd movie was not as successful as the 2nd one.
This one is not the best action movie.
It doesn't intend to.
So for the love of actions, 1 star.
For the love of the concept of the matrix, 5 stars. They created a story that make sense and it was not easy after the previous 3.
I hoped they will have 5th and 6th, but with these reviews and not a real good success in the cinema, they probably won't.