The carnivals or fairs in the area where I grew up were The Ex, The Gloucester Fair, The Perth Fair, and Barrhaven Days. The last one is now just a couple rides in a grocery store parking lot, and the one in Perth is too small and far to have much, beyond a farm animal attraction, a rocket ship ride and a jelly-off. But the Gloucester Fair and the Ex were big enough to have these scare ride. They were carts on tracks that go through a haunted house area, you see horrific scenes done by pivoting painted metal and plaster character as a loud noise goes off and you go on to crash through another door.
As stupid as these rides sound, they scared the SHIT out of me as a child. I distinctly remember fearing for my life when I was on one that ended with an actual person dressed up in zombie attire following the cart. I was young enough to vow never to go on one of those rides again and old enough to be left at home and not need to be put in a situation where I would have to be put in a situation where I would have to go on one of those rides.
What's funny is after that I don't remember going to many carnivals or fairs.
As I grew older I got more and more interested in scare and horror, and becoming more and more desensitized (sp?) I would long for the time I could get a thrill over something simple and stupid as that. So needed to say these "Dark Rides" although an obvious place to have something scary happen, have always been a source of intrigue for me, as well as fairs and carnivals in general, relating to other childhood fears and traumas that would take longer still to explain.
Needless to, or maybe quite needful, I was predisposed to liking this film, for better or worse it would feature one of these horror rides and "fondly" remembered. Added to that, I like slasher films, I make no apologies, there are so much going on in films of these ilk obviously and unobviously to just delve right in.
This film is a slasher and being so pulls out all the traditions and conventions a slasher has. It actually seemed quite classic, it made me think of those older ones that would take place on a campsite, and would set the standards for slasher, those would include but not be limited to the likes of The Burning, Sleepaway Camp, and the first 3 Friday the 13ths. It even had a similar location to Tobe Hooper's Funhouse. In reading all this you can assume that is was not original. It wasn't. You've seen it before, many times. But where in lies the reason to see it is that, if you have "seen it a hundred times" most of those times probably haven't been as well done as this time and you are probably quite fond of the genre having watched so many films.
So in conclusion, if you like slashers watch it. It's a good one. If you are not a fan of slashers fun still enjoy them, watch it, it's still a good movie and you probably haven't seen enough to be able to pick out all the conventions and cliches.