I remember climbing a rock wall when one was brought for a day to our JROTC class in high school. I was never much good at it, but there is a local place called Climb Upstate that has sort of the same thing. I invited my brother Zach to tag along, which was a good idea because unlike the rock wall we climbed back then, the tether/harness required one person to hold the rope as one person climbed.
Even though I did slip once and the rope prevented me from falling, I felt uneasy about using it. I could climb the simple walls with plenty of courage. The more challenging ones led me to climb immediately back down. I wouldn't say we had a bad time, but this place is certainly more for fitness than fun.