I go through about one set of pads per season on each of my bikes. While the salmon pads do wear a little faster than black or dual compound, these provide the best braking, even on dry rims.
Wet weather braking power is fantastic, even with cantilevers. I have slowly moved all of my bikes to cartridge holders, which is much more economical in the long run. I keep a couple of extra sets n my toolbox so I can swap out a bike at any time.
I ride 500-600 miles per month...and change brake pads twice a year regardless of wear... I think pads dry out or become glazed...and I like the modulation or feel of new pads. The Kool Stops feels softer than Shimano replacement pads...which I like...and you cannot beat the price
If you ride in wet weather, you need this salmon softer pad. It does make a significant difference compared to the standard stock-black (harder) pads that come on the bicycle. I run these pads year-round, and replace them more frequently because of the soft composition. But, I like the grab around the rim that the soft pads provide.
The design of Kool Stop brake inserts make it a snap to replace worn out pads. They provide good stopping power. The only negative is they seem to wear out a little fast (the orange ones more than the black pads of course - but overall they wear a little quickly).
... but I have to say, these are excellent brake pads. I was talking to a bike mechanic and he recommended them. Then I did some research online and saw that reviews were uniformly positive. My first bike ride with the pads was on a rainy day on Mt. St. Helens in Washington state. I could not believe how well the (salmon) pads worked on the steep wet roads. The pads seem to wear a bit faster than some other pads I've used but for the extra stopping power and increased safety and performance I think any slight cost differences are nothing. Now I'd feel negligent buying any other pads.
These are great replacements for DuraAce pads on my touring bike. Grip is positive and no fading even with a moderate load on a downhill. They don't wear down as fast as the Shimano pads. Also using the wet & dry pads during the rainy season. Stopping power while touringcommuting are not as demanding compared to training on my road bike so these work perfectly!