i tried dt880 in a local shop and absolutely love their design, comfort. I didnt like its sound when comparing to my akg k701 and hd600. But in term of comfort and feeling, hd600 and dt880 is very good.LOL
Really Beyer design is just perfect. Every headphone should copy Beyer build and only change the driver and acoustic materials that affects the sound
On the other hand, hifiman quality control is a big issue for me to buy any their product although their price (especially through taobao) is very reasonable.