Replaced my original rotors on my Specialized Sirrus Carbon Comp. Easy to follow installation though required some adjustment to the brake pads. Seem to grip better and noisefree.
It's tough to give a qualified and fair review this as I've not ridden other discs but these. They feel solid and brake well in the time I've ridden them. The reason why I purchased them is because of all the other reviews claiming how great a job these discs do.
Switching over to the Ice Tech rotors made such a difference in my braking on the trail. I do a lot of DH shuttle runs and nothing puts brakes to the test like sustained dh tech. My previous Avids wouldn't dissipate heat that well giving me brake fade accompanied by loud squeals. With the ice techs I've yet to get brake fade, giving me strong stopping power thru ought the day with no noise! Fantastic upgrade!!
Use this on my Pivot 429 carbon bike with different tires depending on time of year and terrain I am riding. Wear and tear is great would not use anything else. Have different wheels set up and have them on both bikes.
These do not overheat, do not make noise, stay true, and wear well. You can't buy a better rotor (or a better pair of brakes, for that matter). These are worth the extra money.