Your enjoyment of the film is going to come down to a lot of factors, the most important being how much realistic simulated violence you can stomach. The violence isn't stylized to look cool, and it's not a movie that wants you to jump out of your seat; its mission is to disturb.
Consider the videos that were produced that eventually ended up on Nine Inch Nails' Closure home-video release. "Pinion" features a man being drowned with water that comes from a toilet, "Help Me I'm In Hell" features a man eating flies, and "Happiness In Slavery" features a man being turned into ground meat.
They're all pretty difficult watches for the average viewer and yet Reznor decided to make all of them available. If "Happiness In Slavery" ruins your day, my advice is to avoid the full movie at all costs because it only gets worse. Much worse. Blowtorches-and-razors worse.
But if you can stomach it it's a pretty fascinating watch, and not just for the gore.
Those of us who grew up checking the credits on our favorite videos know the name Peter Christopherson. Perhaps best known for his music career as a member of Throbbing Gristle and Coil, Christopherson was also a member of the Hipgnosis album art team (they did the cover to Dark Side of the Moon) and a director of commercials and music videos.
A look at the video for Rage Against the Machine's "Bulls On Parade" or Ministry's "N.W.O." is proof that the man knew how to put together a video, but the Broken movie is something different altogether: It's incredibly ahead of its time.
Found footage is a genre that's existed in one form or another since at least 1980 (Cannibal Holocaust) but it wasn't until 1999's The Blair Witch Project that it really became a part of the American film landscape. Sure, we get a Paranormal Activity every year now, but in 1992/1993 it wasn't a style that really existed.
And that's what makes Broken so disturbing: while the framing shots are clearly film the actual violence looks like a home movie. The clips wouldn't look out of place in the upcoming found footage anthology V/H/S although they're much more disturbing.
