On the recommendation of my bike shop I been using these tires (tubeless) for 2 years now (approx 15k miles). While I've lost partial tire pressure due to a puncture, I've not yet had a complete flat or a tire that I could not quickly pump up to pressure. I weigh approx 180lbs and ride these tires at 75-80psi for comfort on rides up to 200 miles a day on some very rough roads. I change out the rear tire approx every 2 k miles, or at the first sign of the tread wearing off. I change the front much less often. I've had good experience getting these tires to seat on the rim of my HED Ardense rims. I've tried another brand (Swalbe pro one tubeless) and have not successfully seated the tires, which could be my fault or a compatibility problem between the tires and the HED rims. These are good durable tubeless tires which I highly recommend especially if you are new to tubeless.