We signed up for this with our Go City Card and it was so worth it! Our group was me, my wife, and a friend.
Our host was Gabriela and she was fantastic. We met at the Mizuya @ Mandalay Bay around 10. Our first night club was Light @ Mandalay Bay, then Hyde @ Bellagio, and we ended at the Chateau @ Paris.
We got drinks at the limo between clubs, but the distance between clubs isn't far, so they drive in a little circle to give you some time to chug down a vodka cranberry.
Getting into the clubs was super easy. Standing room only, but that's every big night club here it seems like.
Overall we had a good time and we are glad we did it. It's a great value with the Go City Card.