I was lucky enough to go on this when I went to Vegas about 4 years ago. Let me tell you, It was the most scariest ride I had ever been on. Like someone just said, the ride itself isnt actually scary, Its just where you are(1000FT above the ground)
Anyway, the launch was quite intense, and it really gave you a buzz, It was awesome, View was amazing too,Never before had I felt so scared in my entire life(even my brother was,and he is older than me) Definatly gald I went on it though:):)