Too much whining....
I always take the stance that if you haven't seen it how can you know you won't like it?
A lot of films show a huge amount of gore/violence/torture, it's the story that carries it, not the gore or special effects. I personally found saw (all of them) to be very dull but i will watch this, why? because i like to be shocked and i know that it's not real. People that get off on things that are sickening are more likely to watch the news than a movie....
http://news.sky.com/skynews/Home/Sky-News-Archive/Article/20080641314185
If you honestly think a film about tortue can't be good i suggest you look up "Save the green planet" on IMDB, it is one of the most wonderful, bizaare and disgusting films i have ever seen but you don't see the horrific tortue that it implies, it merely shows facial expressions and allows your mind to do the rest. I found it to be far more horrifying and entertaining than any of the saw films but thats probably because of a great storyline and great acting.
I will watch this although i don't think it will be any better/worse than a standard slasher flick, i would expect it to be like Shogun Assassin, much ado about nothing.