This is a great way to spend an afternoon in Vegas! Especially if it is cold outside! It was a little shorter than I expected it to be, but that could be because I was a chicken and didn't go into the horror section! They have real people in there jumping out at you and I just wasn't feelin' it!
My friend and I got some sweet pictures with all kinds of celebrities including Hugh Hefner and Angelina Jolie. My favorite room was the musicians room. They had an employee in there waiting for people to walk in and when you would, he would ambush you and try to talk you into singing a karaoke duet with him. Super fun and really funny! Overall, had a great time! Not sure if I would go again anytime soon, but it is a definite must do, at least once, while you are in town!
Also, my friend and I were in town for a convention (Like a lot of Vegas tourists are these days!) and if you show your pass you get a super discounted rate!