Thanks for your reply and input. IMO, there's so many variables that can either lengthen or shorten motor life. I really don't have any expectations, because a few hours running, once a month, will be generally considered a long time to failure by most.
On the other hand, someone who runs 8-10 hours at a time, several times a week, will see an eventual failure earlier, if all is the same on that motor.
I've probably have around 10 hours of run time with mine, pulling an 11 car Kato CZ set right now. This Kato set of mine doesn't roll as freely as the El Capitan set that I have, for whatever reason. Bottom line, she pulls it well and smoothly.
I might be getting a little more gear noise right now, than out of the box doing the same, but it's still quieter than vitually any of my diesel units.
I may open it up and check what the worm gear lube looks like. If this is now the "broken in" noise level that it will have, I still rate this a 10+ for everything.
Thanks again.