It is overhyped. But it’s FR from 90hz -3.5k is literally perfect. And it’s very comfortable. It just isn’t particularly fast, detailed, and has dim boring subdued VEILED treble. It also has poor soundstage for an open back.

I have long wished that sennheiser would have released an HD8__ edition which had the HD600’s FR from 90hz-3.5khz, instead of the scooped upper mids we got in the HD800/800s, that is used to simulate an even larger soundstage, close to the AKG K812.