Pros: Solid Build, Good Soundstage.
Cons: A little grainy, surprisingly bass light, not sensitive, most people would prefer more comfort.
These are okay headphones if you can get them for a cheap price (sub £90 ) but probably aren't worth any more than that.
Their build quality is solid, despite all the plastic used, and they can be used for both portable, professional and home audio as they have a low impedance, although I have come across many similar headphones that are easier to drive loud without a headphone Amp. The detachable coiled cable is also a great feature. They are fairly comfortable over a long period of time, they have just the right amount of grip for me although the headband could be more well padded. The ear pads are not soft but do cushion enough IMO. The sound isolation is better than average, these really can shut out the hubub of world if you need them to, also sound leakage is minimal.
The Sound quality is good, although with 50mm drivers I would expect more bass and sub bass,in fact I have to gently eq the mid range frequencies down and the bass up to get a neutral response, although once that is done they show themselves to extend well in both treble and bass directions, bass in particular is tight, clean ,controlled and never gets in the way of the other frequencies. The sound stage on these is the clear strong point, fantastic, providing clarity, in fact in terms of creating stereophonic width and depth these beat the ATH M50x hands down, although in terms of the detail the AudioTechnicas have a bit more resolution on the individual elements.
Overall a worthy purchase at a good price, however for a hundred pounds sterling or more there is much better out there in the closed-back market, like the Sennheiser Urbanite XL or the Yamaha HRH 400 PROs.