Fun and scary haunted house, but buy your tickets ($20) in advance and do NOT go on a Friday or Saturday evening.
We waited over 2 hours in line to get in on a Friday night! There were some entertainers (zombie, cross-dresser, and dirty axe-wielding rabbit) while you are in line, but it was cold, and really not worth that long of a wait.
The house itself took about half an hour to get through. The decorations in the house are intricate and creepy. There are maggots, cobwebs, and all sorts of strange statues, paintings, and rooms. Many scary creatures jump out at you throughout. They have the Forsaken: a haunted carnival, Creepos Christmas in 3-d: you put on 3d glasses, and Pittsburgh Zombies: where zombies roam and terrify. It's single-file throughout the house--being at the front of your group is the best and scariest experience. I enjoyed the vortex tunnel, where you feel like the walkway is spinning around, but its really an optical illusion where just the walls are. Some sections are very tight and make you feel claustrophobic. Overall, a scary good time--just avoid the wait.