A visual masterpiece but fails to be a masterpiece

Rating: 7/10 (5 October 2017)

Visually stunning and perfectly balanced with sounds effects and music. I like slow movies, especially when the story evolves gradually with a beautiful atmosphere.
But I found some parts of the movie unbalanced or unnecessary long... I also have the feeling that the end was wrapped up too quickly comparing to the rest of the movie.
It is developing a story for 2h30 minutes and then suddenly in less than 15 minutes things happens in a hurry. I have the impression that the blue-ray version will be longer so the transition between some scenes will be more coherent.
It should have been 20 minutes shorter OR 20 minutes longer to be more consistent. I can not give more detail to not spoil the plot.
I liked it but I can not give 9/10. As an example from the same director I found The Arrival more balanced.
The cast is great.