I've been running them on my touring bike for two years.
At roughly the 200 mile point, I found a massive slab of glass in some road debris and put a 5/8" slice in the sidewall of front tire.
Booted it, rode it 20 miles home with the boot bulging out the side, then replaced it.
It seems like I had one flat in the rear since then, but don't recall the cause.

I'm impressed with the longevity, considering Kojack tells us the rubber is the same soft variety they use in their racing tires.
The rear tire took on the squared-off profile over a year ago, but I've yet to see cords showing.
I have a new one hanging in the garage for that event.