Lambda Tuning - Yeah or Neah?

ControlGlobal.com recently had an article by process control legend, Greg Shinskey, The Case Against Lambda Tuning. I reached out to Greg McMillan  to get his perspectives, which I've included in today's Emerson Process Experts post, Lambda Tuning-Yeah or Neah?

What perspectives do you have on the use of Lambda tuning for your PID loops?