Sounds a bit of a gimmick
No, these places are great!!
We have them all over the USA a few weeks before Halloween every year, but we call them Haunted Houses.
I didn't think they have them in Poland because I took my wife to one last year and she didn't have a clue to what was about to happen...hahaha!
I think they are a blast!
Warning! If you have a bad heart or scare easily don't do it.