I needed to reachable my bike, and these sounded good. They installed easy, and the shifting is great. This was the first time I tried to do it, and it was pretty simple. This cable seems to work very well.
It always works so good in the beginning but like any other cable that is under tension it eventually will break. But I believe the extra slik and extremely smooth cable will lengthen the life of the cable in comparison to standard cables.
I'm trying to change cables and housings on a regular, mileage based interval. Using Shimano cables and housings have been well worth the cost. I would like a better selection of housing colors tho.... a deeper green, and maybe a nice magenta would really stand out ,- )