Mysteria was bizarro! I definitely didn't think it was scary - but it would have to be one heckuva haunt to scare me.
I believe someone else said this in their post in this thread, but please don't let other's opinions sway you from going or not going to a particular haunt. Everyone's tastes are different. I highly recommend getting the Fright Lane pass and going to all to experience them for yourself! (and I didn't mean that to sound as grumpy as it may have come across!)