Great packaging and easy to install. A bit noisy during first use, improved to very mild squeaks with more aggressive breaking over short distances. Zero noise or issues with hill descent. Bought the Sintered/Steel (Powerful) version.
they might squeal a little in wet or humid conditions but they are durable, and provide excellent stopping power. As long as you keep things clean between rides these pads will last for quite a while. Im going on 2000 miles with these pads and Im kind of a clean freak so YMMV.
Simple installation, they last, and I've never had a pair fail. I ride lots of hill repeats throughout the year in all conditions, so I'm trying out the variety of materials, from the organic quiet, to the powerful sintered copper options. The latter seem to provide more miles on hills, albeit with more noise. I'm an advocate of changing out brake pads well before the minimum thickness specification as opposed to having to replace rotors, so I keep several pair on hand.
The pads my Aeroad came with were junk. I replaced them with these pads last fall and Ive been pretty happy with them. Keep your rotors clean and pull your pads for a cleaning when things get wet. Wet conditions bring grime and abrasives into your braking system. Pull your pads and clean with rubbing alcohol, let dry, reinstall. Pad life will increase and rotor wear will decrease. These pads are kinda noisy when wet, but that's a fact of life with disc brakes. If you have your music loud enough in your ear pieces you will not hear the noise. ;)
I have been riding with SRAM's Organic/Steel brake pads for 4 years now. They are mostly quiet, as advertised and despite the description indicating that the braking power is not quite as high as other compounds, it is plenty strong for me. I can brake as hard as I would ever want.
Only downside may be the life of the pads. I find that they last about 3000 miles, which is less than a season for me. I haven't tried others, so I cannot compare.
For the money I find that the SRAM AXS brake pads work perfectly with the SRAM rotors. I can't say that they last longer than any other brake pads, Because it will depend on your riding style, terrain and rider weight.
What can say. They stop the bike and are quiet. A+