Where to start... These rides are so amazing. X scream and insanity are the perfect length of time and fun. You are not attached at the shoulders like you may think. It is perfect for a great view of Las Vegas especially at night.
It is a bit pricey even just to go up the tower. I really don't think you should have to pay 60 dollars to go up and go on two rides, even just twenty dollars to go up is a bit extravagant.
But it teaming an amazing thing to do in Las Vegas.