I won't bother trying to describe the movie or plot, since there wasn't a lot of the latter in evidence, and others have summarized some of the events amply already.
I'm not really a fan of this type of movie. In some way I appreciate that people are exploring the extremes of gore, but when trying to be gross they often fail to be engrossing. I think a documentary about the people who make and/or enjoy watching these movies would be more interesting (and am thus looking forward to J.T. Petty's S&MAN).
I can't say that there was a moment during the movie where I was shocked or scared or close to vomiting. There are some things that worked artistically in a way, like the intercutting between the video of the child and the other scenes at the beginning and end. The rippling water over a face was striking. I liked the music, though I couldn't identify it.
I found the interviews by Digital Retribution and Inside the Meatgrinder with the director and also his message board comments following the Dreamin' Demon review to be more interesting. A few of the things he mentioned were that the making of the movie followed his viewing the porno movies of Max Hardcore as well as "Asian and Brazilian Scat and Vomit features" and the relationship he intended between events of the movie and events in the last days of Kurt Cobain. I had sort of guessed the former, but hadn't picked up on the latter at all.
Perhaps surprisingly, a scene from the movie was cut by the director. He seems to indicate he was legally required to do so, though since it was not submitted to the MPAA for a rating, I'm not sure why.
Those who really didn't like the movie might be afraid to hear that the director intends it to be the first part of a trilogy. Hopefully by further exploring the idea the director will find ways to draw the viewers in more, to make it more interesting or accessible while still being repulsive. Possibly the commentary tracks and other extras may be of interest, but I have not had the opportunity.