Looking back, I'd say this is the worst out of the series so far. The beginning was very good and now we know what Hoffman is up to, it's Scott Patterson character (who was also in the fourth) trying find out what is going on and is on Hoffman's trail. Plus we get to find how and why Hoffman met up with Jigsaw. The traps are good but the film was too slow and some of the acting could've been better. Having said that, it is well written again. Although I knew what the twist was way before the end and didn't surprise me at all. Great beginning but the last 45 minutes dull. Nice way to end the film with the crushing wall scene though. Even the most die-hard of Saw fans won't credit how tedious, lame and pointless this fourth sequel manages to be, even though it does have some nice touches. The main problem with the film is like I said, it's very slow and when the scenes become dialog it's boring and almost puts the film to a halt. Though the worst in the series, it's still a chapter in the franchise and does explain a few things but eventually things must come to an end. The film does have it's moments but you have to watch it to know what's going on...if you've never seen the other four films, don't bother with this, however...it does continue the story but with few answers.