I purchased these cause I need some more isolation and to reduce the click bleed while recording.
I just tried them, I have to say at first they're not very comfortable, but I guess that's anyway kind of ok. The sound, oh my god, it's awful. They really sound BAD.
Haven't recorded with these yet, hopefully they will work somehow fine.
But if you think you can use these for listening to music, you're completely off rail.