I was given a set of clements by a friend and used them until they ran smooth. I replaced them with these and when I bought a new bike I replaced the stock tires with these the USH. I run them with tubes and have never had a flat. i have over 2000 miles on them. the center bead wore down a bit on the rear tire so I rotated to the front and it is still going. Now with 2k miles the back tire center tread is wearing down. I ride a combo of tarmac and gravel but mostly gravel. I highly recommend these.
One of my favorite tires. I use this for winter training and urban gravel which tends to be a mix of pavement and dirt with a lot of glass and other debris. Riding steep gravel roads with these can be a little tricky due to the center bead, but the roll really fast on pavement. These tires last a long time and are more puncture resistant than other tires I've ridden. I was using these when the brand was Clement and these continue to be my go to tire now that Donnelly makes them.