I brought these 4 years ago, didnt use it much because of the lack of comfort. Sadly my other headphones broke(Superlux hd 672, Takstar Pro 82), so i have to use this one till i get replacement cables. With a little bit of modification i was able to fit hd 4.50 pads on these + used a soft kitchen sponge for the headrest, looks very dumb, but it instantly made it to my most comfortable headphone, easily wearable for 10 hours.
I use it with thewas EQ, its quite enjoyable after EQ. I only miss the bass from the Superlux, with songs like Justice - Fire its definitely lacking.
One big issue with it is quality control, the right side making very weird noises sometimes, like the driver is blown or its touching plastic or something. I noticed this when i got it, but only did it very rarely and only with few songs, now it doing it more frequently. If someone has this issue return it, it will get worse. I removed the felt / took it apart, didnt made any difference.