Absolutely amazing!! This is a MUST when you're in Vegas!! My friend and I had soooo much fun...the runs are fast and intense; 4 total (2 negative, 2 positive). The guides are funny and professional; they instruct you on a few different body positions to make yourself more aerodynamic when going down the lines. They bring water for you since there is a fair amount of uphill hiking, and the views are beautiful!! I didn't want to leave once our runs were over!! Cost is 149 pp during the week and I think 10 or 20 bucks more on weekends...worth every penny and I will recommend to everyone! Tours run almost all day I think...we went early around 9am, and tour lasted maybe 3.5 or so hours.