In my opinion there are 3 criteria, of which commonly fail most headphones of this type at least one:
* Sound quality (especially in the bass)
* Comfort (even if you begin to sweat during prolonged wearing in summer)
* "Einpackfähigkeit" (I do not need a backpack to store the things when I do not need)
Equal first, this model fulfills all these criteria.
The sound reproduction is balanced and the bass fits well with music that is more bassy. One can also recognize details in the sound. Admittedly, the impression of the sound experience is always subjective. But friends of mine have the same headphones and confirm my statement.
Comfort is really great, the Ohrpölster not disintegrate like other headsets of this type after a very short time. No sweating like with closed models. The shield outward fits broadly for headphones open type. I also have to admit that I feeling with closed headphones anyway do not really like the "earmuffs" (especially in extended wear)
Packing it can be also. Folding and in your pocket. So be sollts.
Another positive point is the design that indeed in many headphones really awful (see Koss Porta Pro). If home is not so negative, but on the way ... well. With this one you have to not be ashamed to go out in public.
All in all recommended wholeheartedly.