Last week, there was a guy out at our job, he is supervisor of an Underground utility crew, 10-12 guys, running all types of equipment.
He watched him run the machine for about 2 hours, doing cleanup work.
He told me before he left. "I can't believe my eyes watching how smooth he is and knows exactly where to have the machine and bucket position."  "I've got 30-year-old guys, that have 5 years or more experience, that he is running circles around."

Yeah, I'm proud. :)