I thought this was OK. I don't understand why so many horror movies have to feature utterly unlikable characters, even if they're meant for you to root against, but it was solid for what it was.
I totally agree with you. The wrap around story characters were thugs who sexually assault a woman, horrible people who I had no attachment to.
The guys in that "glasses cam" segment were horrible and incredibly annoying and the drunk dude on the sofa was unbearable.
It makes no sense to me as surely a primary aim is to get the viewer emotionally involved by rooting for the protagonists. I felt detached and was merely observing pricks being killed which is such a low form of entertainment.
Funnily enough the 2 segments I enjoyed the most had fairly likeable characters, The couple in the hotel and the halloween guys. The Halloween guys proved to be decent people when they attempt to rescue the girl which instantly makes you side and root for them making it more enjoyable, who'd have thought it .