Very brief....   These are the first portable cans i have owned where i have been pleased from the very fiirst track i listened to with them.....sound is great even before burn in, and 10 hours in they keep improving naturally.   Nice tight bass, decent detail, nice soundstage/three dementional, comfotable(despite other opinions), and very attractive looking......oh and great synergy with both FiiO E5/E7, for those looking for value and super sound.   Simple yet lovely looking design.   I really cannot think of any negatives beyond...