Pretty much everything I want to say has already been laid out quite eloquently by Abstractals (spoiler tagged): https://trakt.tv/comments/80896

But in summary: There is a lot of technically impressive work in this film, especially the long takes with tons of extras and action in the background. But dramatically, I don't think this film is there. The aspect ratio and narrow depth of field feel like gimmicks, like the screenplay was written entirely to enable their use, rather than making those choices based on a fleshed-out story. I was entirely done with Saul's head being constantly in frame within five minutes, only to be stuck with it for most of the rest of the film. Everything we see (with exceptions covered in Abstractals' review) is either around Saul or through his eyes, and that forced perspective dramatically limits the story. The blurred backgrounds detach the action, making it seem less real. I still have no idea what Saul's motive was. I'm not even sure I care, sadly.

Maybe showing the viewer a Holocaust story that they can't connect with emotionally was the whole point. But if it was, I would have been happy to pass on this.