Update: The controls for volume and mic is a joke. The switch for the mic has zero quality and is switched off by mistake all the time. The volume wheel is loose and sometimes there is no sound in the right headphone because of this. End update.
I alredy owned the Superlux HD 662B and hoped to replace them with these for daily computer use and some gaming.
Audio quality is good for the money, beats all gaming phones I've tried audio vice. Bass is very heavy, heavier than on the HD 662B. But the stereo balance is off by a bit to the left. I suspect the volume controller might cause that, but its easily adjusted in software/hardware.
The build quality on these are not as good as the HD 662B. Still they are OK, but no premium feeling. The head adjustment strap was loose/broken when the phones arrived, so I opened them up (1 screw) and saw that a rubber band was hanging loose, fixed it with a knot and it works OK. The volume wheel doesnt turn the audio completely off (almost on the right ear but not on the left). The mic switch feels really cheap.
The mic can not be adjusted in height.