I've been using 'em for some time-9mm front, 10mm rear. If your hub can be modified to run the bigger skewers there's no need to go with a 15mm fork and the 10mm really makes a big difference stiffening up the rear.
Because me new frame with 142x12 rear end came with a DT through axle, seems good but the axle would have to come completely out for the wheel to slip free.
But for standard QR dropouts I can't see the DT holding any better than a Shimano quick release. I used to run a salsa QR on the rear wheel of another bike, but started getting rotor rub when cranking hard, switching back to an old XT skewer solved it.