Certainly not a journey for everyone, but it is worthwhile. The most rewarding feature for me was the cinematography, specially for the first half of it.
If Zahira's portrayal was better, I believe the whole scenario would also benefit - but this is just someone who hasn't read the book speaking. Anyway, not a bad idea, since the film isn't meant to be 100% accurate.
The dreamiest, silent parts are the best ones; I believe this movie talks more with emotion than through a regular storyline and the sounds, the music deserve praise.
It's different from the book, it doesn't take it as granted script and it ends up making one lean toward the original story to grasp even more emotions taken off this scenario.