Part 2 isn't nearly as disturbing.  There are one or two scenes that are extremely unsettling, but it's not a constant bombardment like in part 1.  Part 2 also has even less storyline than the first, poorer production quality, worse acting, etc.  The main character also ends up topless within the first ten minutes of the movie and remains that way until the very end.  While some of you may think this is a good thing, it is really just ridiculous.
even funnier is that they also made a part 3, 4 and 5.