The Good: it looks mint when its first put on and it does not streach half as much as a normal chain
The Bad: it rusts after a few weeks even though its well lubricated and never left out in the rain and you need the proper tool to fit it otherwise you will break your chain-tool like i did.
still stretches but then again bottom brackets, sprockets, chainrings, drivers and pedles get destroyed by me too so its probibily a great chain for most people mine has done about 10 miles a week so 80 miles now and has not stretched a lot but its there.
don't buy it mine has only done about 350 miles and the pins in the chain slip sideways they haven't come out yet but they have loads of sideways play in them and it has tight and slack spots in it even though i have been using teflon based lubricants. my old kmc chain lasted me about 3 years before it needed replacing so the next chain i'm going to try is a KMC x1