My boyfriend and I have been to the 13th floor twice now. A few years ago we went on a Blackout Night and it was pretty awful. Tonight we went and it was fantastic!
We got there about 7 and waited in line for about a half hour. (I'd get there early). We were let in and the fun started. The rooms are amazingly decorated and the actors are great. Took us about 40 minutes total to get through both houses.
The only reason I give it 4 stars, would give it 4 1/2 if I could is because I think they let too many people in at a time. You can't go in with just your group- which sucks because we got stuck behind a group and all the scare happens in the front.
I know they're busy but it would still be great if each party could go in by themselves!