Got these as a gift when I turned 18.
Had those headphones for music listening and little production (mostly techno in both cases).
The sound is pretty good, feels, however, that they lack a bit in the high register.
They are not suitable for mixing / mastering unfortunately.
The "skin" on the ear pads wear out relatively quickly and you can get some black plastic dots on the head or neck after a few years.
Used them for approx. Four years before I decided to switch.
Can not recommend them for listening to music but not more.
Keeps fo with the other if they are uncomfortable, ears ache after approx. 30-60 minutes of use and I have a normal sized head.