I have own the iGrado 's for about 6 month now , and after extensive heavy usage they be still work perfectly . the sound be phenomenal for a product that be intend to deal mostly mp3 file . with these you can easily tell the difference in music file that be 128kbps vs 320kbps ; thus , you be obviously go to want file with larger rate . as far as the comfort level go , the headband be not adjustable , but it form to my head rather quickly and have be comfortable for I since . my biggest problem with these headphone be actually the spot where the wire connect to the headphone , as they be constantly be bent when they be set down , put on , etc. . however , they have yet to show any sign of give out , so it might not be a big deal . Definatley a good buy .