You want smooth? This ride is smooooth. And the views, of course, are incredible.
Full disclosure: I'm deathly afraid of heights and this thing goes crazy high. But apart from a few jitters at the start, I was thrilled and amazed at how comfortable I felt. I was seriously bummed when the ride ended.
There are deals to be had online and apparently with Groupon so do a little homework before you go.
Time it right and try to go at twilight so you can see Sin City both in the light and then all lit up.
Normally I would say this is a one and done activity but I could and would do this again. We had an absolute blast.