These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
YMMV: Texas Chainsaw 3D
Designated Hero: Heather, after she sides with the Sawyer family, whom she knows nothing about except that they like to kill and eat people on a regular basis. She actively tries to help save Leatherface despite him slaughtering countless innocents, including her friends, and the audience is to believe she's doing the right thing.
Designated Villain: The people of the town are portrayed like this for burning down and murdering the Sawyer family, regardless of the fact that the Sawyer family is made up of cannibalistic and sadistic monsters, but Leatherface and Heather are played as the Lesser of two Evils.
Fridge Brilliance: Notice the tagline says "Evil Wears Many Faces" ? At first one could say this refers to Leatherfaces masks. But examining from the plot you'll notice Leatherface and his family are not the main antagonist's of this film, rather Burt Hartman and his goons, the film also has plenty of Asshole Victims and the protagonist has a Start of Darkness.
When Heather reads Verna's letter, one of the sentances where "He's yours now". The brilliance of that scene comes when you take into account that Verna is played by Marilyn Burns, who played Sally in the original. And since the sequels that are rumored to be in the works are set to continue Heather's story, this is a symbolic Take Up My Sword from one Final Girl to another.
Hate Dumb: Despite Word of God constantly insisting that the film is a continuation of the original movie, a lot of people constantly say that it is either a remake or a continuation of a remake, which is impossible because Leatherface clearly still has his arm in this one. And the fact that almost all movies in the franchise have a similar plot really doesn't help the situation.
Died down since the release, as highlights of the original film are played in the opening credits.
However, people seem to always bring up the Anachronism Stew problem of Heather's age.
Narm: This film gives us classic one-liners such as "Welcome to Texas, motherfucker!" and "Do your thing, cuz!"