Not to scare you off them or anything, but I broke the fucking bejesus out of some diodes this season. Four highbacks, an ankle strap, approximately 18 heelcup pads, and one baseplate over the course of about ~50 days of riding. So one major break every 8 riding days or so, and the heelcup pads (the little rubberized thing on the heelcup that keeps the highback from sliding around) just wouldn't stay on.
I'm a pretty serious rider, and I certainly took tons of huge hits on them, but they're still far more fragile than you would expect from a $Texas binding.
That said, they're absolutely amazing when they're in full working condition. They just don't handle stress very well.