Excellent modulation with the brake and power when needed, very consistant each ride with no fade.
Replaced Hope V4s to get better pad retraction. I love Hope brakes, but their pad retraction leaves a bit to be desired. Dominions have as much pad retraction as I would want (any more and there would be too much free stroke) and the feel, modulation, and power of the Dominions is superb. Bleeding is a much easier process than with the Hopes. Bite point is extremely consistent (unlike Shimanos) and the brakes haven't howled yet. The only issue keeping them from a perfect rating is that the pads can rattle against the aluminium pistons when on rough terrain with the brakes off. Perhaps Hayes will consider phenolic pistons, although they may have a reason for having chosen aluminium.
Just replaced my old Hayes HFX9 brakes on the old trusty Gran Mal. These brakes have incredible stopping power right out of the box. Just set the reach and rip up the mountains!
I bought a fat bike with these brakes and fell in love so deeply, that I bought a pair for my trail ride. These are the most buttery smooth brakes I've ever experienced. Much better than what the big 2 currently can offer. If only my dropper lever had an adapter...but that's not Hayes' issue.
I keep hearing good things about this braking system. I would love to give them a try... now here's the problem, I can't, they're nowhere to be found (for testing) and since sane people don't buy security equipment without testing it I guess you'll survive without me and me alikes.