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.
I've run nearly every brand of hydraulic disc brake over the last 15 years. The Hayes Dominions are by far the most consistent, powerful, and predictable of them all. Excellent modulation and ergonomics.