First, they pick up at only select hotels. I was picked up at a hotel not too terribly far from my location, but walking 15 minutes in the Las Vegas heat can seem too long. Then on the way back, my pick-up point was not an option as a drop-off point. I had to get out at another hotel that added some minutes to my walk back.
I took the "premium express tour" which did not include two full hours at the dam as advertised. We were at the dam two full hours but most of it was spent at an out-lot because the driver didn't want to hassle with the other tour buses that came in before him. Therefore, I had about 45 minutes total to do all the things at the dam this company advertises. Clearly not enough time, as I barely completed the tour and had to leave. You literally didn't even have time for a bathroom stop before having to leave.
For what I paid for the tour, I wish I would have rented a car and explored Hoover dam and Bolder City on my own.
I would not recommend this tour!!!