Pros: Great sound, the bass in particular.
Cons: Cable is not durable
DO NOT BUY.
The sound, in particular the bass is great. BUT, I've had the cable break at the jack on two pairs within a month of getting each (they were replaced under warranty). I have not abused them or dropped my phone hanging from the cable: it is just poorly designed. This is unacceptable for a $160 pair of phones, when the standard phone ones last longer. DO NOT BUY - unless you only want them for a month.
The cable does connect to another 3.5mm jack at the point the cable splits. This is good, as one can easily replace their hopeless quality cables, but is a bit heavy if you use them for running: the mass of the extra jack tends to pull them out of their ears, although they do come with a clip, but this results in the cables 'looping' near your ears.