Just checked my Strava and calculated that my GUB saddle has about 2200 miles on it. It's days are numbered though. I wore through the cover a few rides ago and it's starting to unravel. No structural issues though, and I've had some hard butt bonks and crashes with the saddle.
I have an AliExpress saddle similar to the Specialized Power saddle on the way. I've had some issues with rubbing on my GUB saddle, so I hope this shape will fit me better.