They shot the film in real time, in a single continues take and that's so rare because it takes a lot of work at choreographing everything at the smallest details, but regardless of the effort I don't think that they managed to achieve something special with the way they shot it. There is a lot of black shades that prevent you to see the faces of the actors at some scenes, so nice effort but it could have been much better.
The cast did a very good job. The two main actresses are very good here, but then again that's to be expected when in a film planned with this much detail.
Overall I really liked the movie although there are a few scenes when they drag it a bit and as intimate as the movie is at saying this small story, the message of the film it's universal and important.