I loved the SkyJump in Las Vegas. I'm not a true adrenaline junkie as I'd never do any of the other rides at the top of the Stratosphere but his experience HAD to be done.
I only had two issues: One, we were over an hour behind. Most likely due to people hesitating. I hesitated for 20 seconds but the girl before me took 10 minutes. It is a 17 second jump so that's a long time to hesitate. Two, the harness was too snug around my legs.
Everything else was awesome. Standing on the edge of that platform right before jumping is exhilarating and then you jump or step off or throw yourself off and you fly!
If you have $100 and a couple hours in Vegas you have to do this. Get the DVD also. Its a poor quality video but its clear enough to watch yourself jump from top to bottom.