Great replacement I use for most repairs without getting fancy. Shop stocks these for 21spd,7-8 spd cassette. They shift as well as the upper end chains. Kept lubed will last a year or more. Strong quick shifts, climbs gears well. Drops down and engages good.
I had a chip on my shoulder about master link style chains. I bit the bullet and bought this one and now I'm convinced, master link technology has grown up and is ready for prime time. This chain installed quickly, is exceedingly smooth and unlike chains you have to drive the pin in with a tool, you DONT have to worry about a stuck link! It's always the right tension. Put the ends together, snap them together, and you're done. All I could ask for and more.