I gave Grotesque a go as well until I realised it was utter crap and had no point at all, personally all these extreme gore type films just do nothing for me, I don't find them disturbing in the slightest, just rather silly and pointless.
The French film inside was a film I had heard a lot about before watching, turns out it's total trash, it's one of the stupidest films i've seen in a long time, it might work as a comedy but shocking and disturbing it certainly isn't.
Martyrs on the other hand had an effect on me, I don't like the film but I don't think it's a film you're supposed to like or enjoy, the second half of that film actually left me feeling quite depressed. At times I wanted to switch it off as I had seen enough of Anna's abuse, I found it hard work to get through (I think you're supposed to) and I was left with the second half of that film playing around my head for a long time afterwarRAB.
I think Martyrs deserves the praise it gets, it certainly disturbs and for a film to leave such a lasting negative impression on me would suggest it does it's job as a film.
It's far more disturbing than any of these silly gore flicks (which I find are basically just films that people like to brag about seeing to show off how extreme they are) if you ask me.