I use these at work; I listen to them for hour after hour.  I'm very happy indeed with the comfort level;  They are open-back design but the amount of sound leakage isn't so much it annoys the neighbours.   I compared them to a colleagues Grados for a while; The Grado's defiantely sound...

I've had these headphones for a few years now and I still love them.  They are noise canceling closed back headphones and that does make a difference to the sound.  I occasionally swap my usual open backed headphones for these and listen to something rocky and I'm amazed at the extra punch and...