Well, I'll admit something for starters. I cried like a little girl through most of it. Rare will anyone ever see me cry. The closest I get to crying is like... say... the end of Saving Private Ryan. And its an "almost sob but I don't."
Some of the crying was due to my beliefs... just having an 'idea' of an event without actually realizing what all went into it. Most of it was Mary watching Jesus and the father in me almost knowing what she must be going through...
Its powerful.... waaaay powerful.
For the non-religious (well, non-Christian), you get a sneak peek into our faith along with the cruel cruel punishment of Jesus. For the faithful, you get your first-hand look of what all Jesus went through to save you. You'll never look at the cross the same way again. Its as simple as that.
Oh, and its EXTREMELY bloody... perhaps the cruelist, bloodiest thing I've ever seen. No child under 16 should see this (and I'm only including extremely mature 16 year olds).
And I don't mind hearing all the bad things you think about it... as long as you've watched it. Its like those linux zealots insulting windowsXP when the last time they used windows was windows 95. Watch it, then I'll be happy to respect every bad thing you say about it.