Never trust reviews from people who walk out of a movie. Reviews are opinions stressed by people who watched the whole film. When people write reviews of films they walked out of, that's not a review: it's an uninformed comment.
This is as much as a review as it is an honest opinion by someone who watched the film in its entirety. Keeping in mind that great films shouldn't be loved by everyone.
We Are the Flesh is a cinematic version of dark thoughts and ideas most people immediately remove from their train of thought. As long as you are human enough to understand what is right and wrong in reality, there isn't a single thing wrong with examining dark and even grim thoughts that every single human being has from time to time.
This film explores those themes and presents them in ways that are meant to be hard to watch. These are themes that you normally wouldn't bring up in random conversations with random people. These are themes that aren't meant to be visited often but should be explored at least once. Just to see what they look like. Just to see what dark and grim things you otherwise would not have in your life (by choice) but are curious to see the repercussions from the vile acts that go on in dark places.
For me, We Are the Flesh depicts a horrid version of common, hopeless and deprived humanity. It's a brief example of those dark things I never would allow myself to act upon physically or emotionally. But I find those areas of the unknown panning out visually stimulating. Afterward, I can walk away when the film ends satisfied for experiencing a story that made me think of things I don't want to think about. But I can leave those dark questions answered by putting them behind me and leaving them with this film.
Which to me, makes for a wonderful and well made film.