bought a groupon for 2 people anytime with gopro video. we checked it out on a friday night and thought it was interesting that you have to go through the club to get to the ziplining (check in on the 2nd floor of the rio casino). they do have a text messaging system set up but we didn't face any wait at all - we just took the elevators up to the 51st floor, they snapped a few photos ($20 for 2), and then we hopped on! it was a fast but exhilarating ride since the only thing that's keeping you from falling is a shared lap belt. the view up there was pretty awesome and the DJ was great so if i was back in my 21-ish days (and if it wasn't 40 degrees outside) I would've loved to stay up there. i don't think i'll go on it again and wouldn't recommend it for regular price but it was a pretty fun random adventure.