DT-990 Pro : Great headphones for this price range

The best thing about these headphones is, in my opinion, their build quality, which is amazingly good considering their price.

Next thing is comfort, which is also pretty good, no questions here.

Sound-wise they are pretty decent, but their highs are a bit too sharp to my taste, and after mixing music in these for 30 minutes, or so, I get ear fatigue, so after taking them off, music from my monitors sounds dull and I have to take time to readjust.

However, these headphones have a very detailed sound and if your monitors are not good enough (for instance, if you can't hear reverb tails or other small details properly), I recommend that you use these headphones in conjunction with monitors, i.e. you can check details and nuances on headphones, but use monitors for overall sound balance.