I use the headset each day about 1 to 3 hours to listen to music, watch movies and play games electric piano.
The build quality is absolutely excellent, as is the wearing comfort.
Through the self-adjusting headband headphones sits always pleasant and you get even after many hours 'hot' ears as is the case with some other headphones, no.
The flexible plastic-coated metal bracket can also comfortable to wear the headphones on only one ear to quickly listen to something.
The Kunstlederpads are very pleasant (even in summer), but the Velourspads are a bit too warm and fluffy for my taste.
For sound:
Thanks to the 55 Ohm with which the headset works, you can also easily connect it to a source with little amplifier such as a tablet, or mobile phone.
For my taste, the sound is absolutely perfect.
The centers are full, the treble and the bass clearly warm.
Some people is the Bass ev. A little too much, but just right for my taste, since this results in a very warm sound.
Through the half-open construction outside sounds are perceptible without creating an oppressive feeling.
To listen to and mixing in the professional field it is however probably not suitable.
For me, a whole new world of sound has opened up with this headset. If you suddenly hear the pianist breathe deeply before demanding passages from FLAC recordings, is to hear even the second time quite impressive :)
All in all I give the headphones a very strong buy recommendation and would buy it again at any time.
For another variant named "Studio 240":
The headset has the same data as the MKII and also sounds the same, only the color and the price will be different.
When MKII a very handy spiral cable and velor ear pads in addition to the normal cables are included.