DT-990 Pro : Amazing for Mixing. Not for all-round listening.

The sound and clarity between layers is phenomenal. I'm a complete rookie with this kind of stuff, and doubted how there can be such thing as headphones designed specifically for mixing. Once I put these on my head I understood. I didn't really enjoy listening to music on them over my low-grade Sony WH-CH700N, but they will certainly be used for mixdowns and analytical listening.

Build quality is great. No aspect of it feels cheap.

Not as comfortable for me as I've heard from other reviewers. Again, my Sony WH-CH700N's are way more comfortable. DT's hurt my head after wearing for a while. They are also very clunky so not suitable to ever have around your neck.

So yeah. Great once used for what they are made for.