This movie is bad. There's no other way to say it. The acting is terrible, the direction is terrible, the script is terrible, the pacing is terrible and the "twist" and traps are all...you guessed it...terrible.
The original 7 SAW movies built a rich story of a man seeking a higher purpose for the relatively short time he had left on the planet. This story was woven with layer after layer of twists and turns that actually piggy-backed off of each other to leave the viewer with really good WOW moments...for instance:
When we find out that the victim with the key under his eye in SAW 2 was operated on by Dr Gordon, THAT MAKES SENSE...because Gordon WAS a surgeon. When we learn that Hoffman is also an apprentice, THAT MAKES SENSE because there is manpower required to move and hang victims that a bed ridden Jigsaw and 80 pound Amanda couldn't have.
This movie, introducing ANOTHER apprentice and giving ZERO reason why he's never mentioned in the SEVEN other movies is absolutely insane. I'm sure someone will point out "But, he was the guy who mixed up the X-rays!"...uh...OK...except, mixed up X-rays are never talked about in any of the SEVEN other movies...even in the later movies where we get the bulk of Kramer's story, we are told that he knew he had cancer and the reason he wasn't operated on is because his insurance denied him for "pre-existing conditions".
Another thing that drove me NUTS about this movie is this: when the people make it past the part where the chains are initially released from around their necks, they go right for the LOCKED DOOR...when the barn they're in is rickety as HECK and you can clearly see that the boards holding it together are quite far apart, old and could, most likely, be broken through with ANY of the farm tools that are just lying around. I mean, COME ON. They try and show, later, that old PigFace is stalking them, making sure that they finish the game but, at this point, there are THREE players still left, in relatively good shape and, if all of them grabbed an axe, Pick, shovel and broke through the side of the dang barn, they could take on whoever came at them together.
Also, the "new Jigsaw"...Jesus Christ. Please, PLEASE don't let this guy come back to the series...he's an awful actor, has a crap backstory and absolutely ZERO charisma. If he's supposed to be the guy to lead the series forward...wow. Just...wow.
Lastly...the traps are the reason that people watch these movies and the "traps" in this movie are utter trash. No originality. Not "cool". Not twisted. Just lame and more lame.
Please don't let these brothers anywhere near this franchise again. For the love of god.