PROs:
They ooze quality. The feel, the way they fold, the carrying bag, the screw on 3.5mm to 6.35mm adaptor, the coiled cable, the ear pads, everything*. They sound exquisite too, I've never heard any headphones that sound as good as these and I suspect that unless I spend a LOT more money, I never will. The first day I got them I walked home 5 miles in the pouring rain instead of getting a cab, just so I could listen to some more tunes.
*almost, read on.
CONs:
The only fault I can pick, and it's something I knew about before I purchased them, is that the metal spring coil that hooks under the 3.5mm jack came out, so now it can slide up and down the cable at will. Annoying but not the end of the world. Also I look like a retard wearing them, but that's because I'm not cool enough to pull off the look in public. I mostly use them at home, at the recording studio and on long journeys.
OTHER BITS:
Unless you have a powerful enough MP3 player then you'll be wanting a headphone amp. I use a Meizu M6 which is just about powerful enough to drive them, but I also bought a cheap and cheerful Fiio E5 headphone amp which does make a difference for the better.
I am getting emotional talking about how great these things are. HIGHLY RECOMMENDED.
