I've had these headphones for about 6 months now. I am completely satisfied in every aspect, and they have also exceeded my expectations, and I am not a modest person when it comes to sound. The most important thing here is of course the sound, and they sound absolutely great. I would not say that they colour the sound in any part of the frequency range. They have a brilliant low end, but not overly pronounced. If you listen to some thick techno, you will feel the pressure on your ears, but they dont create any bass that is not there. The clarity of the midrange and the high end is perfect.
The wearing comfort is great. They are not heavy at all, and do not create any unnecesary pressure on your skull. The cable is 2,5m I think, it's longer than I will ever need. The build quality seems fine. They are not super sturdy, but if I dont step on them, they will probably last a long time.
What really pleasantly surprised me is how loud they are when connected to a smartphone. Headphones with drivers this big usually require more power and sound way too silent when connected to phones. These sound just fine. The phone still can not push them as loud as I would like, but they are just as loud as the earbuds. I often connect them through a hi-fi amp to the phone, which gives me way more power and the abillity to enhance the sound on the amp. Then they sound absolutely fantastic.
I highly reccomend them.