I ride tubeless on my road, gravel, trail and fatbike. Road; confort. Gravel; grip & confort. MTB; grip & small bump absortion. Fatbike; weight saving (especially with studded tires), grip on snow and ice. Common for all; no (or very rarely) flats. MTB & Fatbike; without a tube the tire have the shape it's designed to have instead of being rounded by the tube. On the roady anf gravel, the confort is enhanced by the fact that at the same pressure, the tubeless tire have a thinner wall (tube being absent) hence the added confort by the more supple sidewall. I just can't figure out why I'd go back to tubes!!