Seen it, it's fucking terrible... seriously.
Horrible script, zero character depth, piss poor acting except for the lead (she does her best, despite the mess she has to work with) and hardly any real plot. Two of the main characters from SH3's original storyline are barely even it and one them dies right at the start of the film. Bullshit jump scares that would be right at home in Paranormal Activity and face palm-cliche dialogue ("Go to Hell" "Too late, I'm already there" ...for FUCK'S sake...
The first film is an oscar winner compared to this shite, save your money.