I've been using these cans for right about a month as of the time I'm writing this review.
They sound great and are clear, without any real muddy-ness to them, "warm" as other reviewers have said before, but not overly so.
These headphones are very easy to drive, being only 26 ohms, so they can get painfully loud even just being powered by a phone. Using my mixer, if i even dare to turn it up past 1/3 i risk hearing damage.
The construction is superb, the only thing that that causes worries being the plastic inner swivels, but I personally haven't had any issue with them, and have not found anyone complaining that they've broken, so it may just not be something to stress over.
It's a highly comfortable pair of headphones, even when being worn for 12-20 hours at a time, only comfort issue being that sometimes my ears rest up against the inner part of the ear cup, which isn't the most comfortable, but it can be resolved by just re-seating the headphones on my head. Would be better if the cushions would be ever so slightly thicker, but oh well, it's not a major issue.
The accessories are good, the hard case especially.
However. The cable it comes with.
Just 1.5m, really? Fine, whatever.
The mic on the cable is ~ as good as on any standard smartphone. But the button on it... 1st off, it's just one single button. Only play/pause. That's it. 2nd, it feels horrible and mushy to press, sometimes needing to be pressed 2 or 3 times to register.
Overall 4.5/5, very reasonable pair.