I left kind of disappointed. For all the hype, and price, and wait, I had higher expectations. Waited an hour and twenty minutes for less than 10 minutes inside. You have to pay to park, $3. We had a Groupon for $19 for 2 ppl. My friends did not and they said they paid about $30 for two. Inside it's okay, but nothing too scary. The biggest thing is how dark it gets. You go in groups of 6 or 8 and you have to hold hands/shoulders to not get separated because it is so dark, you can't see anything in front of you. They did have a lot of actors inside the mill; lots of opportunity to be scared.
Definitely a great place for a high school date, but I'm not in high school and not too impressed. Next year it'll be some place different.