After 2 years of use, I'm happy but it is not the holy grail I expected. I still have to work hard even when mixing really trust him .. I understand better microphones EQing or compression on my speakers (BM6A) on the headset. I had to make a mix entirely through headphones when I bought, the result was very disappointing ...
So I would say its good, useful either in the studio, but do not rely too. I do not think it is neutral.

Use in recording and mixing on the acoustic music mainly.
Very pleasant to wear, beautiful boiboite with different wiring inside.

Seems solid, detachable connectors therefore, 2 cables screw, small wholesale jack-jack.

Very good sound I found a little "product" big bass and treble quite kind but no big surprise between my headphones and monitors many rules.
Good insulation.