BusinessInsider is summarizing the https://www.gq.com/story/leg-lengthening article. I've read another first-person account of the procedure months ago, it's months of constant pain. As soon as you get used to the new millimeters there's the next procedure for the next millimeters. I wish I could find the older article, the guy said it was worth it but at the same time most of his close friends didn't even notice the height difference.