I've had some done on my past rides and I find it reassuring. Here's an example of where it revealed a problem.....before it became a much more expensive issue.

This is from a 2001 Bullitt.

Oil Analysis.jpg

Blackstone Lab Comments

When we saw the metal in this sample, we called the owner to tell him about it. He
reported that the engine was running great, no signs of a problem at all. The owner
decided to run compression checks on the cylinders and every cylinder held for 30+
minutes between 200-207 psi across the board. A digital borescope suggested the
cylinders were clean and still had cross hatches after 125,000 miles. This led the owner
to disassembly for further diagnosis. After pulling the timing chain cover, he found the
chain had deeply worn into the guide on the passenger side. He replaced the timing
chain and gaskets, and the engine avoided a serious problem.