I really enjoyed it
Maybe it's because I went into this with low expectations but I really liked it. It's a really good popcorn horror/unintentional comedy.
Don't go in thinking it's going to blow your mind or even be scary because it isn't. You won't like anyone in the film (literally not a single person is likeable. The sound guy almost was but not quite) but that just makes it more fun to watch them die (mostly off screen as someone else said but they show enough to let your imagination handle the rest). Yes it has boobs (a couple scenes can only be described as soft core porn). I don't know how many plot holes or inconsistencies this movie has because I try my hardest to not notice them. I'm not watching a movie to criticize how it was made. I'm watching it to enjoy what they tried to make.
Also, I'm a huge fan of Grave Encounters and this movie was different enough from that that I didn't think about Grave Encounters once during this.
All in all I would probably watch this again. I was torn between a 6 and a 7 but ended up going with 7. So just sit back, smoke one (if that's your thing), and enjoy it for what it is instead of what it tries to be.
Here are a few of my all time favorite horror movies in case anyone wondered about my taste:
1408
House on Haunted Hill (1999)
13 Ghosts
Grave Encounters
Cabin in the Woods
Event Horizon (1997)
Pandorum (2009)