Have done 1000 miles on (non-tanwall) gp5000, I think that was more than one effort.
One set of punctures when I left the house in March on my first "lockdown" ride and I got 2 snakebites (front and rear) from ramming a road>bike path curb. None in the Kent lanes so far.
I had a few in 23c. Hardly any punctures, very fast, would buy again.
Problem is people commuting to the office on race (or light gravel) tires and then moaning about flats.
They do look shit, but are they really as fast as ‘tests’ show or have Conti paid-off the internet?