Bought these as a reference headphone for live FOH, not studio.
Good build quality as always with beyerdynamic. Good comfort.
The dissapointment for me is that the frequency curve isn't flat (they have a bass and treble boost) as I expect a reference headphone to be (it is marketed as a mixing/mastering headphone).
Next time I will do a bit better reasearch and will probably buy the Shure SRH940 instead since their frequency curve is almost flat.