One of the problems with any haunted house is that, unless you're signing a waiver first, what you're in for is just going to amount to a series of jump scares, maybe accentuated with the occasional pitch-black room for variety. Most family-establishment-type haunted houses rely on the fact that there are some people who will just never be immune to the inherent terror of being caught off-guard ...
My friend Adrienne, for example.
... to set the mood for everyone else. If you're standing outside in line and hearing bloodcurdling screams from inside, rest assured they're coming from the most easily scared among us. However, if you're in the borderline group that knows damn well there isn't a single thing to be afraid of inside that building, but still gets creeped out by the very idea of a haunted house anyway, just hearing those screams will be enough to make the first few moments inside at least a little bit terrifying.
It's when everyone walks through the door that this group splits into two distinct halves: the people who just stay terrified the whole way through, and the people who, after those first couple of scares, realize that this is going to be a bunch of county fair bullshit that they've seen a million times already. Sure, as things progress, different elements (loud noises, strobe lights, a dude wielding a power tool, etc) will be added to intensify the experience, but it all mostly relies on you not being ready for what happens when you turn the next corner.
I'll admit that this was unexpected.